Discussion:
Curtiss XP-71
(too old to reply)
Rob Arndt
2011-02-14 08:09:35 UTC
Permalink
http://en.wikipedia.org/wiki/Curtiss_XP-71

Me-329 Art fighting XP-71s:
Loading Image...

Me-329 mock-up:
Loading Image...

Rob
Eunometic
2011-02-14 10:21:18 UTC
Permalink
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one. I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun. The
'observer' faced forward and so aimed at the target using a clever
periscopic sight. This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob
Rob Arndt
2011-02-14 13:00:00 UTC
Permalink
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
Me-329:
http://www.luft46.com/mess/me329.html

Tail barbette seen in this art:
Loading Image...

Yeah, I was a bit sad that the Me-329 was not built instead too...

Rob
Daryl Hunt
2011-02-14 18:13:47 UTC
Permalink
Post by Rob Arndt
Post by Eunometic
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one. I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun. The
'observer' faced forward and so aimed at the target using a clever
periscopic sight. This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL. There are two
different top speeds given. The first one is 492 mph and then
it's listed on the same cite as 426. The Range is listed as 2765
as well as 1566 miles. That has got to be the worst Cite I have
ever seen.

Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.

I can buy the second stats as it's very attainable. But the
first stats are just a pipers dream.
Rob Arndt
2011-02-14 18:36:29 UTC
Permalink
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
There are no discrepancies that I noticed:

Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)

It helps to actually read the charts :)

Rob
Daryl Hunt
2011-02-14 18:55:00 UTC
Permalink
Post by Rob Arndt
Post by Daryl Hunt
Post by Rob Arndt
Post by Eunometic
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one. I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun. The
'observer' faced forward and so aimed at the target using a clever
periscopic sight. This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL. There are two
different top speeds given. The first one is 492 mph and then
it's listed on the same cite as 426. The Range is listed as 2765
as well as 1566 miles. That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable. But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts. You are reading into them to justify your
claims.

Since it was never flown under power, just how do you know these
stats would be real? The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats. When it was
actually built, it's speed of 426 mph was contrary to the paper
stats. You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.
Rob Arndt
2011-02-15 00:10:19 UTC
Permalink
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
From another source:

Me-329:

Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.

Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.

In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.

Data:

Powerplants: 2x 1750hp DB 603G engines driving 3.40m (11’ 1”)
diameter pusher airscrews
Dimensions:
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Performance:
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally

~ “Luftwaffe Secret projects: Ground Attack & Special Purpose
Aircraft”, pgs.126-127

* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.

Rob
Daryl Hunt
2011-02-15 00:56:31 UTC
Permalink
Post by Rob Arndt
Post by Daryl Hunt
Post by Rob Arndt
Post by Daryl Hunt
Post by Rob Arndt
Post by Eunometic
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one. I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun. The
'observer' faced forward and so aimed at the target using a clever
periscopic sight. This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL. There are two
different top speeds given. The first one is 492 mph and then
it's listed on the same cite as 426. The Range is listed as 2765
as well as 1566 miles. That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable. But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts. You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real? The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats. When it was
actually built, it's speed of 426 mph was contrary to the paper
stats. You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving 3.40m (11’ 1”)
diameter pusher airscrews
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ “Luftwaffe Secret projects: Ground Attack& Special Purpose
Aircraft”, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
Calculated. That's worse than Projected. I can still buy the
426 as it should have been at or near that. But never the 492.

AS for the DB606. The HE177 used that configuration. To say the
obvious, it was slow. And had a limited life.

The DB 606 was plagued with problems like over heating and fires.
And that was with the prop in a tractor configuration. It
would have been much worse with a pusher. The Proposed 492 was
just a pipe dream. Nothing more.

So we stick with the 426 mph and that I can believe. with it
using the DB603 engine.
Keith Willshaw
2011-02-15 08:47:23 UTC
Permalink
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one. I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun. The
'observer' faced forward and so aimed at the target using a clever
periscopic sight. This is missing in the painting.
Post by Rob Arndt
Me-329
mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL. There are two
different top speeds given. The first one is 492 mph and then
it's listed on the same cite as 426. The Range is listed as 2765
as well as 1566 miles. That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable. But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts. You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real? The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats. When it was
actually built, it's speed of 426 mph was contrary to the paper
stats. You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
= From another source:

= Me-329:

= Detail design of the Me-265 was still in progress when Dr. Alexander
= Lippisch together with Dr-Ing Hermann Wurster began design work on the
= two-seat P.10 (later Me-329) Zerstorer project, both proposed as
= comparative studies with the Me-410.

The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.

The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft. Fast with minimal defensive armament they
could evade enemy fighters using speed and altitude.

Keith
Rob Arndt
2011-02-15 12:48:58 UTC
Permalink
Post by Keith Willshaw
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one. I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun. The
'observer' faced forward and so aimed at the target using a clever
periscopic sight. This is missing in the painting.
Post by Rob Arndt
Me-329
mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL. There are two
different top speeds given. The first one is 492 mph and then
it's listed on the same cite as 426. The Range is listed as 2765
as well as 1566 miles. That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable. But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts. You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real? The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats. When it was
actually built, it's speed of 426 mph was contrary to the paper
stats. You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
= Detail design of the Me-265 was still in progress when Dr. Alexander
= Lippisch together with Dr-Ing Hermann Wurster began design work on the
= two-seat P.10 (later Me-329) Zerstorer project, both proposed as
= comparative studies with the Me-410.
The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.
The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft. Fast with minimal defensive armament they
could evade enemy fighters using speed and altitude.
Keith- Hide quoted text -
- Show quoted text -
A bad decision on the part of the RLM...

Had the Fw-187 Falke been accepted in 1939 and upgraded with the new
series of DB powerplants it would have been the first 400 mph fighter
easily (a feat a prototype with DB 600s just about achieved in 1939 at
394 mph). The Falke twin would have had the firepower and performance
as multirole to put the Bf 110, Me-210 and 410 to shame.

Why the LW continued with Zerstorer a/c and projects is baffling, but
at least the LW got some use out of the 410 as Pulkzerstorer against
the USAAF (armed with BK waffen and rockets) while the Hungarians used
their 410s as ATG anti-armor attacker with some success.

Rob
Jim Wilkins
2011-02-15 13:18:05 UTC
Permalink
Post by Rob Arndt
...>
Had the Fw-187 Falke been accepted in 1939 and upgraded with the new
series of DB powerplants it would have been the first 400 mph fighter
easily (a feat a prototype with DB 600s just about achieved in 1939 at
394 mph). ...>
Rob
Had the XP-39 turbosupercharger installation been done better we would
have had a very nimble 400 MPH fighter with a 37mm cannon in 1938.
The prototype reached 390 MPH on 6 April 1938 despite high drag from
the still-experimental cooling and turbo configurations, soon
corrected on the P-38.

Below its critical altitude the P-39 could tangle with Zeros.

jsw
Eunometic
2011-02-17 12:00:15 UTC
Permalink
Post by Keith Willshaw
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one. I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun. The
'observer' faced forward and so aimed at the target using a clever
periscopic sight. This is missing in the painting.
Post by Rob Arndt
Me-329
mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL. There are two
different top speeds given. The first one is 492 mph and then
it's listed on the same cite as 426. The Range is listed as 2765
as well as 1566 miles. That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable. But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts. You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real? The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats. When it was
actually built, it's speed of 426 mph was contrary to the paper
stats. You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
= Detail design of the Me-265 was still in progress when Dr. Alexander
= Lippisch together with Dr-Ing Hermann Wurster began design work on the
= two-seat P.10 (later Me-329) Zerstorer project, both proposed as
= comparative studies with the Me-410.
The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.
The Zerstoerer (Destroyer) concept was about a fast light bomber, that
could self escort, that could straff up runways, parked aircraft, AAA
defenses, with heavy forward fire and light bombs at high speed to
clear a path and supress defenses for level bombers that would then
finnish of the job. It was about an all weather/night fighter
platform and it was about a heavy fighter that could destroy enemy
bombers. (where the destroyer terms comes from). No one in the world
had anything like it. No P-38, no Beufughters, No Mosquito. Only
Battles and Blenhiems. At some point mission drift someone got it
into their head this could be an escort fighter.

The aircraft that could do this role was the FW-187. Unfortunatly it
was Kurt Tanks idea not some buerocrat and they didn't get the idea.
The FW-187 maintained Power to Weight ratios, wing loadings etc
comparable to a single engine fighter. It uncompromsingly avoided the
temptation of taking advantage of the greater capacity of the twin to
cram in more weight.
Post by Keith Willshaw
The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft.
The A-26 was the retrograde step. It came quite late in the war,
wasn't all that fast and was certainly being challenged by a new
generation of german piston aircraft and jets. Its only success was to
arrive as the war was ending. Too late. It spent most of its
carear shooting up little brown people lucky to have an asault
rifle. The Mosquito was clearly the right aicraft at the right
time.

The P-51 had it momment between Jan 1944 to May 1945. By the time the
P-51H came out it no longer had any advantages over other aircraft.
Keith Willshaw
2011-02-17 19:40:29 UTC
Permalink
Post by Keith Willshaw
The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.
The Zerstoerer (Destroyer) concept was about a fast light bomber, that
could self escort, that could straff up runways, parked aircraft, AAA
defenses, with heavy forward fire and light bombs at high speed to
clear a path and supress defenses for level bombers that would then
finnish of the job.
Not so. The original RLM requirement was indeed for a Kamfzerstörer
that would fill those roles and the requirement included an internal
bomb bay. Messerschmitt realised that an aircraft built to those
requirements would probably fail to be good in either fighter or
bombr role and omitted the bomb bay. The projected performance of
the other designs confirmed that view and the spec was replaced by
requirements for a heavy fighter - the Zerstorer and a SchnellBomber.

The Me-110 was originally introduced as a fighter and that is
how it was used. Bomb racks were not fitted as standard until
the Bf 110 C-4/B while the Schnellbomber role went to the Ju-88
Post by Keith Willshaw
It was about an all weather/night fighter platform and it was about
a heavy fighter that could destroy enemy bombers. (where the destroyer
terms comes from).
Feel free to point to the details in the requirement issued that specified
this. The reality is that in 1935 nobody was thinking in terms
of all weather or night fighters and from the start the Me-110 #
was used as an escort fighter. It got pushed into the other roles
as an operational necessity as did the Blenheim in RAF service
Post by Keith Willshaw
No one in the world
had anything like it. No P-38, no Beufughters, No Mosquito. Only
Battles and Blenhiems. At some point mission drift someone got it
into their head this could be an escort fighter.
The aircraft that could do this role was the FW-187. Unfortunatly it
was Kurt Tanks idea not some buerocrat and they didn't get the idea.
The FW-187 maintained Power to Weight ratios, wing loadings etc
comparable to a single engine fighter. It uncompromsingly avoided the
temptation of taking advantage of the greater capacity of the twin to
cram in more weight.
Reality check

FW-187 A0
Loaded weight: 5,000 kg (11,023 lb)
Powerplant: 2× Junkers Jumo 210G 12-cylinder inverted-V piston, 515 kW (700
PS) each

Performance
Maximum speed: 529 km/h at 4,200 m (329 mph at 13,780 ft)
Service ceiling: 10,000 m (32,810 ft)
Rate of climb: 1,050 m/min (3,445 ft/min)
Wing loading: 164.14 kg/m² (33.62 lb/ft²)
Power to Weight ratio 0.17 hp/lb

Bf-110 C-4
Loaded weight: 6,700 kg (14,771 lb)
Powerplant: 2× Daimler-Benz DB 601B-1 liquid-cooled inverted V-12, 809 kW
(1,085 hp)1,100 PS each

Performance
Maximum speed: 560 km/h (348 mph)
Service ceiling: 10,500 m (35,000 ft)
Wing loading: 173 kg/m² (35.7 lb/ft²)
Power/mass: 0.3644 kW/kg (0.155 hp/lb)

The differences are marginal

The small size PREVENTED its use as a night fighter since
an evaluation proved the fuselage was too small to accomodate
German AI radars
Post by Keith Willshaw
The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft.
The A-26 was the retrograde step. It came quite late in the war,
wasn't all that fast and was certainly being challenged by a new
generation of german piston aircraft and jets. Its only success was to
arrive as the war was ending. Too late. It spent most of its
carear shooting up little brown people lucky to have an asault
rifle. The Mosquito was clearly the right aicraft at the right
time.
The A-26 was introduced in 1944 and srved until 1965

It was VERY highly regarded by the pilots who flew it
over Germany, it was a far superior attack aircraft than the Bf-110
with a longer range and better payload.

Clean there was little difference in performance while the
Invader was much handier carrying a bomb load internally
than the Bf-110 with its external stores.
Post by Keith Willshaw
The P-51 had it momment between Jan 1944 to May 1945. By the time the
P-51H came out it no longer had any advantages over other aircraft.
Mainly because the Luftwaff no longer existed by then, of course over
Japan it was markedly superior to the mass of fighter it oppposed.

Keith
David E. Powell
2019-07-17 19:24:05 UTC
Permalink
Post by Keith Willshaw
Post by Keith Willshaw
The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.
The Zerstoerer (Destroyer) concept was about a fast light bomber, that
could self escort, that could straff up runways, parked aircraft, AAA
defenses, with heavy forward fire and light bombs at high speed to
clear a path and supress defenses for level bombers that would then
finnish of the job.
Not so. The original RLM requirement was indeed for a Kamfzerstörer
that would fill those roles and the requirement included an internal
bomb bay. Messerschmitt realised that an aircraft built to those
requirements would probably fail to be good in either fighter or
bombr role and omitted the bomb bay. The projected performance of
the other designs confirmed that view and the spec was replaced by
requirements for a heavy fighter - the Zerstorer and a SchnellBomber.
The Me-110 was originally introduced as a fighter and that is
how it was used. Bomb racks were not fitted as standard until
the Bf 110 C-4/B while the Schnellbomber role went to the Ju-88
Post by Keith Willshaw
It was about an all weather/night fighter platform and it was about
a heavy fighter that could destroy enemy bombers. (where the destroyer
terms comes from).
Feel free to point to the details in the requirement issued that specified
this. The reality is that in 1935 nobody was thinking in terms
of all weather or night fighters and from the start the Me-110 #
was used as an escort fighter. It got pushed into the other roles
as an operational necessity as did the Blenheim in RAF service
Post by Keith Willshaw
No one in the world
had anything like it. No P-38, no Beufughters, No Mosquito. Only
Battles and Blenhiems. At some point mission drift someone got it
into their head this could be an escort fighter.
The aircraft that could do this role was the FW-187. Unfortunatly it
was Kurt Tanks idea not some buerocrat and they didn't get the idea.
The FW-187 maintained Power to Weight ratios, wing loadings etc
comparable to a single engine fighter. It uncompromsingly avoided the
temptation of taking advantage of the greater capacity of the twin to
cram in more weight.
Reality check
FW-187 A0
Loaded weight: 5,000 kg (11,023 lb)
Powerplant: 2× Junkers Jumo 210G 12-cylinder inverted-V piston, 515 kW (700
PS) each
Performance
Maximum speed: 529 km/h at 4,200 m (329 mph at 13,780 ft)
Service ceiling: 10,000 m (32,810 ft)
Rate of climb: 1,050 m/min (3,445 ft/min)
Wing loading: 164.14 kg/m² (33.62 lb/ft²)
Power to Weight ratio 0.17 hp/lb
Bf-110 C-4
Loaded weight: 6,700 kg (14,771 lb)
Powerplant: 2× Daimler-Benz DB 601B-1 liquid-cooled inverted V-12, 809 kW
(1,085 hp)1,100 PS each
Performance
Maximum speed: 560 km/h (348 mph)
Service ceiling: 10,500 m (35,000 ft)
Wing loading: 173 kg/m² (35.7 lb/ft²)
Power/mass: 0.3644 kW/kg (0.155 hp/lb)
The differences are marginal
The small size PREVENTED its use as a night fighter since
an evaluation proved the fuselage was too small to accomodate
German AI radars
Post by Keith Willshaw
The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft.
The A-26 was the retrograde step. It came quite late in the war,
wasn't all that fast and was certainly being challenged by a new
generation of german piston aircraft and jets. Its only success was to
arrive as the war was ending. Too late. It spent most of its
carear shooting up little brown people lucky to have an asault
rifle. The Mosquito was clearly the right aicraft at the right
time.
The A-26 was introduced in 1944 and srved until 1965
It was VERY highly regarded by the pilots who flew it
over Germany, it was a far superior attack aircraft than the Bf-110
with a longer range and better payload.
Clean there was little difference in performance while the
Invader was much handier carrying a bomb load internally
than the Bf-110 with its external stores.
Post by Keith Willshaw
The P-51 had it momment between Jan 1944 to May 1945. By the time the
P-51H came out it no longer had any advantages over other aircraft.
Mainly because the Luftwaff no longer existed by then, of course over
Japan it was markedly superior to the mass of fighter it oppposed.
Keith
The P-51H also was reserved in Europe during the Korean War, as it was considered a front line fighter there which could not be spared. As I recall, P-51Ds were the Mustang of choice in Korea.
Daryl
2019-07-18 00:49:14 UTC
Permalink
Post by David E. Powell
Post by Keith Willshaw
Post by Keith Willshaw
The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.
The Zerstoerer (Destroyer) concept was about a fast light bomber, that
could self escort, that could straff up runways, parked aircraft, AAA
defenses, with heavy forward fire and light bombs at high speed to
clear a path and supress defenses for level bombers that would then
finnish of the job.
Not so. The original RLM requirement was indeed for a Kamfzerstörer
that would fill those roles and the requirement included an internal
bomb bay. Messerschmitt realised that an aircraft built to those
requirements would probably fail to be good in either fighter or
bombr role and omitted the bomb bay. The projected performance of
the other designs confirmed that view and the spec was replaced by
requirements for a heavy fighter - the Zerstorer and a SchnellBomber.
The Me-110 was originally introduced as a fighter and that is
how it was used. Bomb racks were not fitted as standard until
the Bf 110 C-4/B while the Schnellbomber role went to the Ju-88
Post by Keith Willshaw
It was about an all weather/night fighter platform and it was about
a heavy fighter that could destroy enemy bombers. (where the destroyer
terms comes from).
Feel free to point to the details in the requirement issued that specified
this. The reality is that in 1935 nobody was thinking in terms
of all weather or night fighters and from the start the Me-110 #
was used as an escort fighter. It got pushed into the other roles
as an operational necessity as did the Blenheim in RAF service
Post by Keith Willshaw
No one in the world
had anything like it. No P-38, no Beufughters, No Mosquito. Only
Battles and Blenhiems. At some point mission drift someone got it
into their head this could be an escort fighter.
The aircraft that could do this role was the FW-187. Unfortunatly it
was Kurt Tanks idea not some buerocrat and they didn't get the idea.
The FW-187 maintained Power to Weight ratios, wing loadings etc
comparable to a single engine fighter. It uncompromsingly avoided the
temptation of taking advantage of the greater capacity of the twin to
cram in more weight.
Reality check
FW-187 A0
Loaded weight: 5,000 kg (11,023 lb)
Powerplant: 2× Junkers Jumo 210G 12-cylinder inverted-V piston, 515 kW (700
PS) each
Performance
Maximum speed: 529 km/h at 4,200 m (329 mph at 13,780 ft)
Service ceiling: 10,000 m (32,810 ft)
Rate of climb: 1,050 m/min (3,445 ft/min)
Wing loading: 164.14 kg/m² (33.62 lb/ft²)
Power to Weight ratio 0.17 hp/lb
Bf-110 C-4
Loaded weight: 6,700 kg (14,771 lb)
Powerplant: 2× Daimler-Benz DB 601B-1 liquid-cooled inverted V-12, 809 kW
(1,085 hp)1,100 PS each
Performance
Maximum speed: 560 km/h (348 mph)
Service ceiling: 10,500 m (35,000 ft)
Wing loading: 173 kg/m² (35.7 lb/ft²)
Power/mass: 0.3644 kW/kg (0.155 hp/lb)
The differences are marginal
The small size PREVENTED its use as a night fighter since
an evaluation proved the fuselage was too small to accomodate
German AI radars
Post by Keith Willshaw
The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft.
The A-26 was the retrograde step. It came quite late in the war,
wasn't all that fast and was certainly being challenged by a new
generation of german piston aircraft and jets. Its only success was to
arrive as the war was ending. Too late. It spent most of its
carear shooting up little brown people lucky to have an asault
rifle. The Mosquito was clearly the right aicraft at the right
time.
The A-26 was introduced in 1944 and srved until 1965
It was VERY highly regarded by the pilots who flew it
over Germany, it was a far superior attack aircraft than the Bf-110
with a longer range and better payload.
Clean there was little difference in performance while the
Invader was much handier carrying a bomb load internally
than the Bf-110 with its external stores.
Post by Keith Willshaw
The P-51 had it momment between Jan 1944 to May 1945. By the time the
P-51H came out it no longer had any advantages over other aircraft.
Mainly because the Luftwaff no longer existed by then, of course over
Japan it was markedly superior to the mass of fighter it oppposed.
Keith
The P-51H also was reserved in Europe during the Korean War, as it was considered a front line fighter there which could not be spared. As I recall, P-51Ds were the Mustang of choice in Korea.
The P-51H was a hopped up, light weight D model. It had real problems
with the forward operating runways required in Korea. While it was
nearly as fast as the Jets it wouldn't put up with the punishment. The
slower D was much more rugged and versatile.




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David E. Powell
2019-07-18 02:08:46 UTC
Permalink
Post by Daryl
Post by David E. Powell
Post by Keith Willshaw
Post by Keith Willshaw
The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.
The Zerstoerer (Destroyer) concept was about a fast light bomber, that
could self escort, that could straff up runways, parked aircraft, AAA
defenses, with heavy forward fire and light bombs at high speed to
clear a path and supress defenses for level bombers that would then
finnish of the job.
Not so. The original RLM requirement was indeed for a Kamfzerstörer
that would fill those roles and the requirement included an internal
bomb bay. Messerschmitt realised that an aircraft built to those
requirements would probably fail to be good in either fighter or
bombr role and omitted the bomb bay. The projected performance of
the other designs confirmed that view and the spec was replaced by
requirements for a heavy fighter - the Zerstorer and a SchnellBomber.
The Me-110 was originally introduced as a fighter and that is
how it was used. Bomb racks were not fitted as standard until
the Bf 110 C-4/B while the Schnellbomber role went to the Ju-88
Post by Keith Willshaw
It was about an all weather/night fighter platform and it was about
a heavy fighter that could destroy enemy bombers. (where the destroyer
terms comes from).
Feel free to point to the details in the requirement issued that specified
this. The reality is that in 1935 nobody was thinking in terms
of all weather or night fighters and from the start the Me-110 #
was used as an escort fighter. It got pushed into the other roles
as an operational necessity as did the Blenheim in RAF service
Post by Keith Willshaw
No one in the world
had anything like it. No P-38, no Beufughters, No Mosquito. Only
Battles and Blenhiems. At some point mission drift someone got it
into their head this could be an escort fighter.
The aircraft that could do this role was the FW-187. Unfortunatly it
was Kurt Tanks idea not some buerocrat and they didn't get the idea.
The FW-187 maintained Power to Weight ratios, wing loadings etc
comparable to a single engine fighter. It uncompromsingly avoided the
temptation of taking advantage of the greater capacity of the twin to
cram in more weight.
Reality check
FW-187 A0
Loaded weight: 5,000 kg (11,023 lb)
Powerplant: 2× Junkers Jumo 210G 12-cylinder inverted-V piston, 515 kW (700
PS) each
Performance
Maximum speed: 529 km/h at 4,200 m (329 mph at 13,780 ft)
Service ceiling: 10,000 m (32,810 ft)
Rate of climb: 1,050 m/min (3,445 ft/min)
Wing loading: 164.14 kg/m² (33.62 lb/ft²)
Power to Weight ratio 0.17 hp/lb
Bf-110 C-4
Loaded weight: 6,700 kg (14,771 lb)
Powerplant: 2× Daimler-Benz DB 601B-1 liquid-cooled inverted V-12, 809 kW
(1,085 hp)1,100 PS each
Performance
Maximum speed: 560 km/h (348 mph)
Service ceiling: 10,500 m (35,000 ft)
Wing loading: 173 kg/m² (35.7 lb/ft²)
Power/mass: 0.3644 kW/kg (0.155 hp/lb)
The differences are marginal
The small size PREVENTED its use as a night fighter since
an evaluation proved the fuselage was too small to accomodate
German AI radars
Post by Keith Willshaw
The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft.
The A-26 was the retrograde step. It came quite late in the war,
wasn't all that fast and was certainly being challenged by a new
generation of german piston aircraft and jets. Its only success was to
arrive as the war was ending. Too late. It spent most of its
carear shooting up little brown people lucky to have an asault
rifle. The Mosquito was clearly the right aicraft at the right
time.
The A-26 was introduced in 1944 and srved until 1965
It was VERY highly regarded by the pilots who flew it
over Germany, it was a far superior attack aircraft than the Bf-110
with a longer range and better payload.
Clean there was little difference in performance while the
Invader was much handier carrying a bomb load internally
than the Bf-110 with its external stores.
Post by Keith Willshaw
The P-51 had it momment between Jan 1944 to May 1945. By the time the
P-51H came out it no longer had any advantages over other aircraft.
Mainly because the Luftwaff no longer existed by then, of course over
Japan it was markedly superior to the mass of fighter it oppposed.
Keith
The P-51H also was reserved in Europe during the Korean War, as it was considered a front line fighter there which could not be spared. As I recall, P-51Ds were the Mustang of choice in Korea.
The P-51H was a hopped up, light weight D model. It had real problems
with the forward operating runways required in Korea. While it was
nearly as fast as the Jets it wouldn't put up with the punishment. The
slower D was much more rugged and versatile.
Thank you, Daryl! Great to hear from you! Is your web site still running?

Hope you are having a great summer!

David
Post by Daryl
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Daryl
2019-07-18 04:02:13 UTC
Permalink
Post by David E. Powell
Post by Daryl
Post by David E. Powell
Post by Keith Willshaw
Post by Keith Willshaw
The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.
The Zerstoerer (Destroyer) concept was about a fast light bomber, that
could self escort, that could straff up runways, parked aircraft, AAA
defenses, with heavy forward fire and light bombs at high speed to
clear a path and supress defenses for level bombers that would then
finnish of the job.
Not so. The original RLM requirement was indeed for a Kamfzerstörer
that would fill those roles and the requirement included an internal
bomb bay. Messerschmitt realised that an aircraft built to those
requirements would probably fail to be good in either fighter or
bombr role and omitted the bomb bay. The projected performance of
the other designs confirmed that view and the spec was replaced by
requirements for a heavy fighter - the Zerstorer and a SchnellBomber.
The Me-110 was originally introduced as a fighter and that is
how it was used. Bomb racks were not fitted as standard until
the Bf 110 C-4/B while the Schnellbomber role went to the Ju-88
Post by Keith Willshaw
It was about an all weather/night fighter platform and it was about
a heavy fighter that could destroy enemy bombers. (where the destroyer
terms comes from).
Feel free to point to the details in the requirement issued that specified
this. The reality is that in 1935 nobody was thinking in terms
of all weather or night fighters and from the start the Me-110 #
was used as an escort fighter. It got pushed into the other roles
as an operational necessity as did the Blenheim in RAF service
Post by Keith Willshaw
No one in the world
had anything like it. No P-38, no Beufughters, No Mosquito. Only
Battles and Blenhiems. At some point mission drift someone got it
into their head this could be an escort fighter.
The aircraft that could do this role was the FW-187. Unfortunatly it
was Kurt Tanks idea not some buerocrat and they didn't get the idea.
The FW-187 maintained Power to Weight ratios, wing loadings etc
comparable to a single engine fighter. It uncompromsingly avoided the
temptation of taking advantage of the greater capacity of the twin to
cram in more weight.
Reality check
FW-187 A0
Loaded weight: 5,000 kg (11,023 lb)
Powerplant: 2× Junkers Jumo 210G 12-cylinder inverted-V piston, 515 kW (700
PS) each
Performance
Maximum speed: 529 km/h at 4,200 m (329 mph at 13,780 ft)
Service ceiling: 10,000 m (32,810 ft)
Rate of climb: 1,050 m/min (3,445 ft/min)
Wing loading: 164.14 kg/m² (33.62 lb/ft²)
Power to Weight ratio 0.17 hp/lb
Bf-110 C-4
Loaded weight: 6,700 kg (14,771 lb)
Powerplant: 2× Daimler-Benz DB 601B-1 liquid-cooled inverted V-12, 809 kW
(1,085 hp)1,100 PS each
Performance
Maximum speed: 560 km/h (348 mph)
Service ceiling: 10,500 m (35,000 ft)
Wing loading: 173 kg/m² (35.7 lb/ft²)
Power/mass: 0.3644 kW/kg (0.155 hp/lb)
The differences are marginal
The small size PREVENTED its use as a night fighter since
an evaluation proved the fuselage was too small to accomodate
German AI radars
Post by Keith Willshaw
The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft.
The A-26 was the retrograde step. It came quite late in the war,
wasn't all that fast and was certainly being challenged by a new
generation of german piston aircraft and jets. Its only success was to
arrive as the war was ending. Too late. It spent most of its
carear shooting up little brown people lucky to have an asault
rifle. The Mosquito was clearly the right aicraft at the right
time.
The A-26 was introduced in 1944 and srved until 1965
It was VERY highly regarded by the pilots who flew it
over Germany, it was a far superior attack aircraft than the Bf-110
with a longer range and better payload.
Clean there was little difference in performance while the
Invader was much handier carrying a bomb load internally
than the Bf-110 with its external stores.
Post by Keith Willshaw
The P-51 had it momment between Jan 1944 to May 1945. By the time the
P-51H came out it no longer had any advantages over other aircraft.
Mainly because the Luftwaff no longer existed by then, of course over
Japan it was markedly superior to the mass of fighter it oppposed.
Keith
The P-51H also was reserved in Europe during the Korean War, as it was considered a front line fighter there which could not be spared. As I recall, P-51Ds were the Mustang of choice in Korea.
The P-51H was a hopped up, light weight D model. It had real problems
with the forward operating runways required in Korea. While it was
nearly as fast as the Jets it wouldn't put up with the punishment. The
slower D was much more rugged and versatile.
Thank you, Daryl! Great to hear from you! Is your web site still running?
Hope you are having a great summer!
David
Still around. I've been monitoring this but haven't had much to say.
It reminds me of a story.

There was a child that didn't talk. His parents were really worried.
They sent him to many different doctors but couldn't figure out why he
never said a word his entire life. One day, he looked up and said,
"Please pass the Potatoes". The Father was flabbergasted but passed the
Potatoes. The Mother said, "You can can talk. Why haven't you talked
before". The child said, he was now nine, "Until now, everything was fine".



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David E. Powell
2019-07-18 20:37:07 UTC
Permalink
Post by Daryl
Post by David E. Powell
Post by Daryl
Post by David E. Powell
Post by Keith Willshaw
Post by Keith Willshaw
The entire notion of the Zerstorer was fundamentally flawed.
That the RLM didnt see this in 1940 when the Me-110 ended
up needing a Bf-109 escort over Britain is incomprehensible.
The Zerstoerer (Destroyer) concept was about a fast light bomber, that
could self escort, that could straff up runways, parked aircraft, AAA
defenses, with heavy forward fire and light bombs at high speed to
clear a path and supress defenses for level bombers that would then
finnish of the job.
Not so. The original RLM requirement was indeed for a Kamfzerstörer
that would fill those roles and the requirement included an internal
bomb bay. Messerschmitt realised that an aircraft built to those
requirements would probably fail to be good in either fighter or
bombr role and omitted the bomb bay. The projected performance of
the other designs confirmed that view and the spec was replaced by
requirements for a heavy fighter - the Zerstorer and a SchnellBomber.
The Me-110 was originally introduced as a fighter and that is
how it was used. Bomb racks were not fitted as standard until
the Bf 110 C-4/B while the Schnellbomber role went to the Ju-88
Post by Keith Willshaw
It was about an all weather/night fighter platform and it was about
a heavy fighter that could destroy enemy bombers. (where the destroyer
terms comes from).
Feel free to point to the details in the requirement issued that specified
this. The reality is that in 1935 nobody was thinking in terms
of all weather or night fighters and from the start the Me-110 #
was used as an escort fighter. It got pushed into the other roles
as an operational necessity as did the Blenheim in RAF service
Post by Keith Willshaw
No one in the world
had anything like it. No P-38, no Beufughters, No Mosquito. Only
Battles and Blenhiems. At some point mission drift someone got it
into their head this could be an escort fighter.
The aircraft that could do this role was the FW-187. Unfortunatly it
was Kurt Tanks idea not some buerocrat and they didn't get the idea.
The FW-187 maintained Power to Weight ratios, wing loadings etc
comparable to a single engine fighter. It uncompromsingly avoided the
temptation of taking advantage of the greater capacity of the twin to
cram in more weight.
Reality check
FW-187 A0
Loaded weight: 5,000 kg (11,023 lb)
Powerplant: 2× Junkers Jumo 210G 12-cylinder inverted-V piston, 515 kW (700
PS) each
Performance
Maximum speed: 529 km/h at 4,200 m (329 mph at 13,780 ft)
Service ceiling: 10,000 m (32,810 ft)
Rate of climb: 1,050 m/min (3,445 ft/min)
Wing loading: 164.14 kg/m² (33.62 lb/ft²)
Power to Weight ratio 0.17 hp/lb
Bf-110 C-4
Loaded weight: 6,700 kg (14,771 lb)
Powerplant: 2× Daimler-Benz DB 601B-1 liquid-cooled inverted V-12, 809 kW
(1,085 hp)1,100 PS each
Performance
Maximum speed: 560 km/h (348 mph)
Service ceiling: 10,500 m (35,000 ft)
Wing loading: 173 kg/m² (35.7 lb/ft²)
Power/mass: 0.3644 kW/kg (0.155 hp/lb)
The differences are marginal
The small size PREVENTED its use as a night fighter since
an evaluation proved the fuselage was too small to accomodate
German AI radars
Post by Keith Willshaw
The P-38 and P-51 showed the way forward with long range
fighters while the Mosquito and A-26 were the future of the
attack aircraft.
The A-26 was the retrograde step. It came quite late in the war,
wasn't all that fast and was certainly being challenged by a new
generation of german piston aircraft and jets. Its only success was to
arrive as the war was ending. Too late. It spent most of its
carear shooting up little brown people lucky to have an asault
rifle. The Mosquito was clearly the right aicraft at the right
time.
The A-26 was introduced in 1944 and srved until 1965
It was VERY highly regarded by the pilots who flew it
over Germany, it was a far superior attack aircraft than the Bf-110
with a longer range and better payload.
Clean there was little difference in performance while the
Invader was much handier carrying a bomb load internally
than the Bf-110 with its external stores.
Post by Keith Willshaw
The P-51 had it momment between Jan 1944 to May 1945. By the time the
P-51H came out it no longer had any advantages over other aircraft.
Mainly because the Luftwaff no longer existed by then, of course over
Japan it was markedly superior to the mass of fighter it oppposed.
Keith
The P-51H also was reserved in Europe during the Korean War, as it was considered a front line fighter there which could not be spared. As I recall, P-51Ds were the Mustang of choice in Korea.
The P-51H was a hopped up, light weight D model. It had real problems
with the forward operating runways required in Korea. While it was
nearly as fast as the Jets it wouldn't put up with the punishment. The
slower D was much more rugged and versatile.
Thank you, Daryl! Great to hear from you! Is your web site still running?
Hope you are having a great summer!
David
Still around. I've been monitoring this but haven't had much to say.
It reminds me of a story.
There was a child that didn't talk. His parents were really worried.
They sent him to many different doctors but couldn't figure out why he
never said a word his entire life. One day, he looked up and said,
"Please pass the Potatoes". The Father was flabbergasted but passed the
Potatoes. The Mother said, "You can can talk. Why haven't you talked
before". The child said, he was now nine, "Until now, everything was fine".
:)

Well, it is good to see you! Glad all is well!

David
Post by Daryl
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Geoffrey Sinclair
2019-07-18 12:54:12 UTC
Permalink
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as it was
considered a
front line fighter there which could not be spared. As I recall, P-51Ds
were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use. By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force. The youngest P-51H had been built at the
end of 1945.

Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."

The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite. The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant. The H was the full redesign to handle the
heavier Merlin and propeller.

The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.

Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".

"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds. USAF and manufacturer's
documentation support this. The oft-told tales of a less-strong
structure are just that - oft-told tales. There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.

No. Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.

In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with the
punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.

Geoffrey Sinclair
Remove the nb for email.
Daryl
2019-07-19 04:05:23 UTC
Permalink
Post by Geoffrey Sinclair
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as it
was considered a
front line fighter there which could not be spared. As I recall,
P-51Ds were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use.  By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force.  The youngest P-51H had been built at the
end of 1945.
Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."
The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite.  The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant.  The H was the full redesign to handle the
heavier Merlin and propeller.
The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.
Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".
"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds.  USAF and manufacturer's
documentation support this.  The oft-told tales of a less-strong
structure are just that - oft-told tales.  There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.
No.  Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.
In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with the
punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The  slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.
Geoffrey Sinclair
Remove the nb for email.
Your personal opinion noted as personal opinion only.



---
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Geoffrey Sinclair
2019-07-19 15:12:05 UTC
Permalink
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as it was
considered a
front line fighter there which could not be spared. As I recall, P-51Ds
were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use. By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force. The youngest P-51H had been built at the
end of 1945.
Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."
The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite. The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant. The H was the full redesign to handle the
heavier Merlin and propeller.
The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.
Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".
"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds. USAF and manufacturer's
documentation support this. The oft-told tales of a less-strong
structure are just that - oft-told tales. There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.
No. Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.
In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with the
punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.
Your personal opinion noted as personal opinion only.
Ah an upgrade from troll to personal opinion and from ignored to noted.
And nice to see Peter's facts become my opinion. And the messages
still around on so many news servers containing the facts are also
supposed to be opinion.

Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.

Geoffrey Sinclair
Remove the nb for email.
Daryl
2019-07-19 19:40:36 UTC
Permalink
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as it
was considered a
front line fighter there which could not be spared. As I recall,
P-51Ds were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use. By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force. The youngest P-51H had been built at the
end of 1945.
Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."
The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite. The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant. The H was the full redesign to handle the
heavier Merlin and propeller.
The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.
Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".
"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds. USAF and manufacturer's
documentation support this. The oft-told tales of a less-strong
structure are just that - oft-told tales. There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.
No. Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.
In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with the
punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.
Your personal opinion noted as personal opinion only.
Ah an upgrade from troll to personal opinion and from ignored to noted.
And nice to see Peter's facts become my opinion.  And the messages
still around on so many news servers containing the facts are also
supposed to be opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
Geoffrey Sinclair
Remove the nb for email.
I see you are still playing the old game of, "If you can't rebut the
message, attack the messenger". Have a nice day, old sot.



---
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https://www.avg.com
Geoffrey Sinclair
2019-07-20 12:54:29 UTC
Permalink
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as it
was considered a
front line fighter there which could not be spared. As I recall,
P-51Ds were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use. By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force. The youngest P-51H had been built at the
end of 1945.
Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."
The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite. The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant. The H was the full redesign to handle the
heavier Merlin and propeller.
The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.
Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".
"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds. USAF and manufacturer's
documentation support this. The oft-told tales of a less-strong
structure are just that - oft-told tales. There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.
No. Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.
In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with the
punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.
Your personal opinion noted as personal opinion only.
Ah an upgrade from troll to personal opinion and from ignored to noted.
And nice to see Peter's facts become my opinion. And the messages
still around on so many news servers containing the facts are also
supposed to be opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
I see you are still playing the old game of, "If you can't rebut the
message, attack the messenger". Have a nice day, old sot.
Daryl is typing in front of a mirror again.

Like Daryl calling people "old sot" and troll.

Like calling Peter's facts my opinion.

Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.

As for nice day, not really, the interesting events are scheduled to last
past dawn, then comes sun snoozing to recuperate.

Geoffrey Sinclair
Remove the nb for email.
Daryl
2019-07-20 13:21:36 UTC
Permalink
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as
it was considered a
front line fighter there which could not be spared. As I recall,
P-51Ds were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use. By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force. The youngest P-51H had been built at the
end of 1945.
Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."
The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite. The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant. The H was the full redesign to handle the
heavier Merlin and propeller.
The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.
Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".
"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds. USAF and manufacturer's
documentation support this. The oft-told tales of a less-strong
structure are just that - oft-told tales. There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.
No. Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.
In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with
the punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.
Your personal opinion noted as personal opinion only.
Ah an upgrade from troll to personal opinion and from ignored to noted.
And nice to see Peter's facts become my opinion. And the messages
still around on so many news servers containing the facts are also
supposed to be opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
I see you are still playing the old game of, "If you can't rebut the
message, attack the messenger".  Have a nice day, old sot.
Daryl is typing in front of a mirror again.
Like Daryl calling people "old sot" and troll.
Like calling Peter's facts my opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
As for nice day, not really, the interesting events are scheduled to last
past dawn, then comes sun snoozing to recuperate.
Actually, you are the one that used the term "Troll". I guess you can't
keep your trolls straight, old Sot.



---
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https://www.avg.com
Geoffrey Sinclair
2019-07-21 14:45:52 UTC
Permalink
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as it
was considered a
front line fighter there which could not be spared. As I recall,
P-51Ds were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use. By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force. The youngest P-51H had been built at the
end of 1945.
Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."
The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite. The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant. The H was the full redesign to handle the
heavier Merlin and propeller.
The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.
Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".
"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds. USAF and manufacturer's
documentation support this. The oft-told tales of a less-strong
structure are just that - oft-told tales. There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.
No. Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.
In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with the
punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.
Your personal opinion noted as personal opinion only.
Ah an upgrade from troll to personal opinion and from ignored to noted.
And nice to see Peter's facts become my opinion. And the messages
still around on so many news servers containing the facts are also
supposed to be opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
I see you are still playing the old game of, "If you can't rebut the
message, attack the messenger". Have a nice day, old sot.
Daryl is typing in front of a mirror again.
Like Daryl calling people "old sot" and troll.
Like calling Peter's facts my opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
As for nice day, not really, the interesting events are scheduled to last
past dawn, then comes sun snoozing to recuperate.
Actually, you are the one that used the term "Troll". I guess you can't
keep your trolls straight, old Sot.
Actually Daryl, I reported your language from the previous attempts to push
your aircraft fiction. Leaving in all the text makes it easy to figure out
what
is going on, though I doubt anyone else is actually reading this, let alone
going back to the messages from years ago, but thanks for helping to
keep the memory alive of how fictional your P-51 history is, with new
examples of how the facts are avoided.

Meantime I drop in, have a laugh, and move on, and wait to see if there
will be another attempt at history rewrite for tomorrow's amusement.

And I note Daryl is typing in front of a mirror again.

Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.

Geoffrey Sinclair
Remove the nb for email.
Daryl
2019-07-21 18:13:34 UTC
Permalink
Post by Geoffrey Sinclair
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as
it was considered a
front line fighter there which could not be spared. As I
recall, P-51Ds were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use. By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force. The youngest P-51H had been built at the
end of 1945.
Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."
The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite. The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant. The H was the full redesign to handle the
heavier Merlin and propeller.
The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.
Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".
"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds. USAF and manufacturer's
documentation support this. The oft-told tales of a less-strong
structure are just that - oft-told tales. There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.
No. Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.
In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with
the punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.
Your personal opinion noted as personal opinion only.
Ah an upgrade from troll to personal opinion and from ignored to noted.
And nice to see Peter's facts become my opinion. And the messages
still around on so many news servers containing the facts are also
supposed to be opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
I see you are still playing the old game of, "If you can't rebut the
message, attack the messenger". Have a nice day, old sot.
Daryl is typing in front of a mirror again.
Like Daryl calling people "old sot" and troll.
Like calling Peter's facts my opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
As for nice day, not really, the interesting events are scheduled to last
past dawn, then comes sun snoozing to recuperate.
Actually, you are the one that used the term "Troll".  I guess you
can't keep your trolls straight, old Sot.
Actually Daryl, I reported your language from the previous attempts to push
your aircraft fiction.  Leaving in all the text makes it easy to figure
out what
is going on, though I doubt anyone else is actually reading this, let alone
going back to the messages from years ago, but thanks for helping to
keep the memory alive of how fictional your P-51 history is, with new
examples of how the facts are avoided.
Meantime I drop in, have a laugh, and move on, and wait to see if there
will be another attempt at history rewrite for tomorrow's amusement.
And I note Daryl is typing in front of a mirror again.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
Geoffrey Sinclair
Remove the nb for email.
Do what you think is right. I have better things to do than bother with
you.

BTW, another reason they didn't use the P-51H was they were used as
Bomber Escorts for Stateside Bombers since they had the extreme range
and could hang with them all the way. I have two choices in to whom to
listen to. Do I listen to the Korean Air Force Vets or do I listen to
some crackpot who thinks he knows everything.

Have a nice life, cupcake.



---
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David E. Powell
2019-07-22 01:46:57 UTC
Permalink
Was not trying to start a flame war when I revived this thread. I just wanted to point out that P-51Ds seemed the choice of Mustang in Korea, with H models apparently elsewhere.


I have to wonder if the XP-71 would have ever been a capable fighter. As it was, the mission never really came up for it, and the XP-82 Twin Mustang served well into Korea, so it seemed to fill the long range escort niche as well as a night fighter niche with mounted radar.
Geoffrey Sinclair
2019-07-22 15:19:46 UTC
Permalink
Post by David E. Powell
Was not trying to start a flame war when I revived this thread.
You didn't, others did.
Post by David E. Powell
I just
wanted to point out that P-51Ds seemed the choice of Mustang in
Korea, with H models apparently elsewhere.
The H were elsewhere, the hassle being Daryl has his ideas about
the P-51 and will push them in to any P-51 discussion. Its the risk
a lot of discussions have to run. At least Daryl has admitted they
were in the US, not leaving pieces in Korea, even if the reason
given is incorrect. So a little progress in a few minutes of comedy
relief.
Post by David E. Powell
I have to wonder if the XP-71 would have ever been a capable fighter.
As it was, the mission never really came up for it, and the XP-82
Given the arrival of the jets the piston engined types could really only
trade for a time on their longer range and use as night fighters.
Post by David E. Powell
Twin Mustang served well into Korea, so it seemed to fill the long
range escort niche as well as a night fighter niche with mounted radar.
As far as I know it was meant as the long range fighter to escort B-29,
then came use as a night fighter. And agreed it, like the P-51, served
well in Korea.

Geoffrey Sinclair
Remove the nb for email.
Daryl
2019-07-22 17:28:06 UTC
Permalink
Post by David E. Powell
Was not trying to start a flame war when I revived this thread. I just wanted to point out that P-51Ds seemed the choice of Mustang in Korea, with H models apparently elsewhere.
I have to wonder if the XP-71 would have ever been a capable fighter. As it was, the mission never really came up for it, and the XP-82 Twin Mustang served well into Korea, so it seemed to fill the long range escort niche as well as a night fighter niche with mounted radar.
The Jets were still very fuel hungry and didn't have the range for any
kind of long range escort duty. That fell to the F-51H which had the
longest legs of all the piston fighters including the F-82. And even if
it didn't have longer legs, it was more lethal as a fighter with a much
faster roll rate than the F-82. There were a lot of reasons not to use
the H model in Korea. But us Yanks have to understand that not all
reasons were written by those that used the equipment. History isn't
always right. It always depends on who is telling it. Like saying the
P-51 defeated the Luftwaffe when in fact, by the time the 51 made the
scene with enough force, the P-38J was already doing the job and could
fly with the 109 and 190 all day long. The P-47 and the P-38 were the
ones that started the fighter sweeps starting in Early 1944. The P-51s
were still building up. The only reason the P-51 was kept was that it
was less costly to operate but like all the other two, there were plenty
in reserve that none would have to be purchased and no new parts would
have to be purchases. But I'll say it again, the H was considered the
P-51 light and lacked many of the beefiness of the D in things like
cockpit and nacelle armor, fuselage mounts, etc.. You can't have those
things and lighten it up like they did. They were going for speed,
range and performance over robustness.


As I said, it all depends on who is telling the history lesson.



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Geoffrey Sinclair
2019-07-23 13:04:26 UTC
Permalink
Post by Daryl
Post by David E. Powell
I have to wonder if the XP-71 would have ever been a capable fighter.
As it was, the mission never really came up for it, and the XP-82 Twin
Mustang served well into Korea, so it seemed to fill the long range
escort niche as well as a night fighter niche with mounted radar.
The Jets were still very fuel hungry and didn't have the range for any
kind of long range escort duty. That fell to the F-51H which had the
longest legs of all the piston fighters including the F-82.
Will it be a surprise to anyone the P-51D had a longer range than the
P-51H? And the P-82B a longer range than the P-51D?

Most of the rest is simply cut and paste from the last time Daryl
ran this set of fictions.
Post by Daryl
And even if it didn't have longer legs, it was more lethal as a fighter
with a much faster roll rate than the F-82.
Single engined fighter tend to have roll advantages over twins.
Post by Daryl
There were a lot of reasons not to use the H model in Korea.
Actually there were two, it was not in theatre at the start and was
required in the US.
Post by Daryl
But us Yanks have to understand that not all reasons were written by those
that used the equipment. History isn't always right. It always depends
on who is telling it.
Daryl needs the history isn't right claim since his telling is so wrong.
I wonder if the above can be used next time Daryl tries the you were
not there so cannot be right line.
Post by Daryl
Like saying the P-51 defeated the Luftwaffe when in fact, by the time the
51 made the scene with enough force, the P-38J was already doing the job
and could fly with the 109 and 190 all day long.
In fact the 8th Air Force first mission using P-38J models of any type
seems to have been on 28 December 1943 or about 3 weeks after the
P-51 was flying missions.

Daryl defines enough force as a flexible time to show Daryl is right and
already doing the job is defined as taking at best a 1 to 1 loss ratio. As
can be seen below it was the P-47 that had the numbers and would
continue to do so well into 1944.

And of course as is well known the P-38 had a shorter range on internal
fuel than the P-47 which had a shorter range on internal fuel than the
P-51 and the P-38 was certainly not able to fly with the Bf109 and FW190
all day long, whatever that means.
Post by Daryl
The P-47 and the P-38 were the ones that started the fighter sweeps
starting in Early 1944. The P-51s were still building up.
Fighter sweeps were missions without bombers and proved
largely unproductive, meantime,

On 20 December 1943 the 55th Fighter Group P-38, discovering
the bombers are 30 minutes late decide to finally try a tactic much
discussed by the fighter pilots, ranging well ahead of the bomber
formations to try and intercept the Luftwaffe fighters to at least
break up their formations. No kills credited.

On 7 January 1944 the phased escort tactic is used, fighters patrol
areas of the route after flying direct, not with the bombers.

On 11 January 1944 the first sanctioned attempt at distant escort,
ranging both ahead and to the side of the bomber formations, the
56th Fighter Group provides 2 formations of P-47, one claims 11
kills the other none.

P-38 operations with the 8th AF started on 15 October 1943.

First escort mission, 20 October, 39 P-38, no kill claims, 321 P-47
6 kill claims. No USAAF fighters MIA.

table is date / number of P-38 / P-38 kill claims / P-38 MIA //
number of P-47 / number of P-47 kill claims / P-47 MIA. Bomber
escort missions only

3 November / 45 / 3 / 0 // 333 / 11 / 2
5 November / 47 / 5 / 0 // 336 / 13 / 4
7 November / 0 / 0 / 0 // 283 / 1 / 0
11 November / 59 / 0 / 0 // 342 / 8 / 2
13 November / 45 / 7 / 7 // 345 / 3 / 3
19 November / 0 / 0 /0 // 288 / 0 / 0
26 November / 28 / 0 / 0 // 353 / 36 / 4
29 November / 38 / 2 / 7 // 314 / 13 / 9
30 November / 20 / 0 / 1 // 327 / 0 / 5
1 December / 42 / 0 / 5 // 374 / 20 / 2

The third set of figures is for P-51

5 December / 34 / 0 / 0 // 266 / 0 / 1 // 36 / 0 / 0
11 December / 31 / 0 / 0 // 313 / 20 / 3 // 44 / 0 / 1
13 December / 31 / 1 / 0 // 322 / 0 / 1 // 41 / 0 / 1
16 December / 31 / 0 / 0 // 131 / 1 / 1 // 39 / 1 / 0
20 December / 26 / 0 / 0 // 418 / 16 / 2 // 47 / 3 / 4
22 December / 40 / 0 / 2 // 448 / 9 / 2 // 28 / 6 / 0
24 December / 40 / 0 / 0 // 459 / 0 / 0 // 42 / 0 / 0
30 December / 79 / 0 / 0 // 463 / 8 / 11 // 41 / 0 / 2
31 December / 74 / 3 / 1 // 441 / 4 / 2 // 33 / 2 / 1

Totals, P-38 749 sorties, 21 kill claims, 23 MIA,
P-47 6,877 sorties, 169 kill claims, 54 MIA,
P-51 351 sorties, 12 kill claims, 9 MIA.

The P-38 started flying 8th AF escort missions on 20 October, the P-51
on 5 December, the difference is 9 bomber missions and until the second
P-38 group flew combat at the end of the month there were more P-51
on escort than P-38 in December.

Ignoring 1942, the first
8th Air Force P-38 group flew its first mission mid October 1943,
when there were 7 P-47 groups flying missions. The second P-38
group flew it first mission at the end of December. The third group
flew its first mission in early March 1944, by which stage the 8th had
2 operational P-51 groups and was borrowing the 9th AF ones.

In late May 1944 it was 4 P-38 to 7 P-51, by end July it was 1 P-38 to
10 P-51 groups flying missions.
Post by Daryl
The only reason the P-51 was kept was that it was less costly to operate
but like all the other two, there were plenty in reserve that none would
have to be purchased and no new parts would have to be purchases.
The P-38 was being phased out in 1945 and quickly post war, the
P-47 and P-51 were still around in comparable numbers when the
Korean war began. All those Air National Guard Units. The USAAF
deliberately went to an all jet single seat fighter production policy,
phasing out the piston engined type by end 1945, And while the air
force no doubt had lots of spares they still probably had to buy more
given the time the aircraft were kept in service and their flying hours.
Post by Daryl
But I'll say it again,
Since it is so wrong only Daryl says it so needs to repeat it in
the hope someone will believe it, including Daryl.
Post by Daryl
the H was considered the P-51 light
No, that was the F and G. The H was the redesign for the Merlin.
Post by Daryl
and lacked many of the beefiness of the D in things like cockpit and
nacelle armor, fuselage mounts, etc..
No.
Post by Daryl
You can't have those things and lighten it up like they did.
Actually you can, given the airframe was stressed the same, better
design based on experience. Remember the early Allison was
lighter than the Merlin with the resultant problems of having the
engine mounts strengthened.

Meantime the P-51H was around 100 pounds heavier than the P-51A,
while carrying 2 extra machine guns. I await Daryl letting us know
about the lightweight A model and its lack of robustness.
Post by Daryl
They were going for speed, range and performance over robustness.
They were going with more speed, less range overall, better
performance with the same robustness.
Post by Daryl
As I said, it all depends on who is telling the history lesson.
Daryl of course is telling fictional history.

Geoffrey Sinclair
Remove the nb for email.

Geoffrey Sinclair
2019-07-22 15:19:43 UTC
Permalink
Post by Daryl
Post by Geoffrey Sinclair
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by Geoffrey Sinclair
Post by Daryl
Post by David E. Powell
The P-51H also was reserved in Europe during the Korean War, as
it was considered a
front line fighter there which could not be spared. As I recall,
P-51Ds were the Mustang
of choice in Korea.
The P-51H were in the US National Guard units, not sure about any
overseas use. By the end of 1949 the USAF had accepted nearly
600 F-80C, around 750 F-84 and over 250 F-86A, they were the
front line fighter force. The youngest P-51H had been built at the
end of 1945.
Peter Stickney noted, "By early 1950, none of the Active USAF units
had F-51s as their primary equipment."
The P-51D were used because they, and their support, were there.
Post by Daryl
The P-51H was a hopped up, light weight D model.
Not quite. The light P-51 were the experimental F and
G models, which were lighter than any other P-51
variant. The H was the full redesign to handle the
heavier Merlin and propeller.
The A came in at 6,443 pounds empty the B and C
at 6,985 pounds empty, the D 7,125, the H 6,585.
Also to quote Peter Stickney from the last time Daryl
decided to present his fictional P-51H, from March 2013
"Why was the P-51 rated #1 over the F-15?" and again
in April 2018, "P-51 Mustang".
"(Note that although a "Lightweight" Mustang, the F-51Hs were built
to the same strength factors as every other USAF fighter - they were
rated in service for 8 Gs, just like the Ds. USAF and
manufacturer's
documentation support this. The oft-told tales of a less-strong
structure are just that - oft-told tales. There is no real evidence
to back it up.)"
Post by Daryl
It had real problems with the forward operating runways required in Korea.
Last time it was dirt runways in Korea, now it is forward operating.
No. Please show all the F-51H attempts at taking off from such
runways that failed where the D model succeeded.
In fact the F-51 was better suited to the airfields in Korea than
the jets until the bases were upgraded.
Post by Daryl
While it was nearly as fast as the Jets it wouldn't put up with
the punishment.
No. By the way where is the battle damage analysis of all
those F-51H in combat?
Post by Daryl
The slower D was much more rugged and versatile.
No. At least the 2013 leaving pieces on the runway claim was not
repeated and forward operating replaced dirt.
Your personal opinion noted as personal opinion only.
Ah an upgrade from troll to personal opinion and from ignored to noted.
And nice to see Peter's facts become my opinion. And the messages
still around on so many news servers containing the facts are also
supposed to be opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
I see you are still playing the old game of, "If you can't rebut the
message, attack the messenger". Have a nice day, old sot.
Daryl is typing in front of a mirror again.
Like Daryl calling people "old sot" and troll.
Like calling Peter's facts my opinion.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
As for nice day, not really, the interesting events are scheduled to last
past dawn, then comes sun snoozing to recuperate.
Actually, you are the one that used the term "Troll". I guess you can't
keep your trolls straight, old Sot.
Actually Daryl, I reported your language from the previous attempts to push
your aircraft fiction. Leaving in all the text makes it easy to figure
out what
is going on, though I doubt anyone else is actually reading this, let alone
going back to the messages from years ago, but thanks for helping to
keep the memory alive of how fictional your P-51 history is, with new
examples of how the facts are avoided.
Meantime I drop in, have a laugh, and move on, and wait to see if there
will be another attempt at history rewrite for tomorrow's amusement.
And I note Daryl is typing in front of a mirror again.
Easy to shoot down incorrect opinions, just present the facts, easy to
see someone unable to do so.
Do what you think is right. I have better things to do than bother with
you.
Hence why Daryl keeps replying.
Post by Daryl
BTW, another reason they didn't use the P-51H was they were used as Bomber
Escorts for Stateside Bombers since they had the extreme range and could
hang with them all the way.
Is it now the time to mention with a more powerful engine and less internal
tankage the P-51H had less range than the P-51D?

Another reason is actually they were in use as interceptors, things like
the USSR Tu-4, the early jets had more speed, the P-51 more range
for longer pursuits. Nothing to to with Korean airfields.
Post by Daryl
I have two choices in to whom to listen to.
You really should get out more, your voice and its echo are simply
not enough.
Post by Daryl
Do I listen to the Korean Air Force Vets or do I listen to some crackpot
who thinks he knows everything.
The trouble is Daryl you keep listening to the crackpot in the mirror and
ignoring the veterans.
Post by Daryl
Have a nice life, cupcake.
Ah real affection in a sign off, *sigh*.

Geoffrey Sinclair
Remove the nb for email.
Eunometic
2011-02-15 23:22:12 UTC
Permalink
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving  3.40m (11’ 1”)
diameter pusher airscrews
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ “Luftwaffe Secret projects: Ground Attack & Special Purpose
Aircraft”, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
The aircraft would have reached near the 492mph had it been proceded
with even without the DB606. One could perhaps subtract 20 mph to
account for a mixture of brochure talk and the absence of military
equipment.

The DB606 produced 2700hp over the DB603G 1900hp. However by late
1944/1945 DB had two advanced engines ready:

DB603LA which could in its "sonder notleistung" roughtly special
emergency power rating could produce 2400hp at seal level (in fact
2500 at rated altitude see chart) and the DB603N which could produce
2800hp by using C3 95/130 fuel. These had two stage superchargers and
would have produced their power at a higher altitude than the DB606 as
well as have had considerable greater jet thrust.

Me 329, with its pusher props would have been perfect for inflight
refueling. (According to Manfred Griel code name "MK 101Z" in flight
refueling equipment for the He 177 had already been ordered in 1941
but was suspended when the bomber was delayed. Experiments continued
however and by 1944 a report issued in August note that the hose/
drogue procedure was now 'foolproof' and needed only 2 more months to
prepeare for seriel production)

In german but you can used google translate:
http://mitglied.multimania.de/luftwaffe1/do335/do335_3.html
chart of DB603 engines vs altitude:
http://www.pimpmyspace.org/comments/code/2389110/

Here are figures for the earlier engines:

DB 603A. Length: 2610mm, Height: 1167mm, Width: 830mm. (B4 fuel)
At sea level.
T/off and emergency (3'): 1750PS, 2700rpm, 1.4ata, 570l/h
Climb and combat (30'): 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 5.7km
Emergency (3'): 1620PS, 2700rpm, 1.4ata, 530l/h
Climb and combat (30'): 1510PS, 2500rpm, 1.3ata, 460l/h
Emergency power at 10km: 950PS, 2700rpm, .85ata

DB 603AA. Length: 2610mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1670PS, 2700rpm, 1.4ata, 550l/h
Climb and combat: 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 7.3km (emergency), and 7.2km (climb and
combat)
Emergency: 1450PS, 2700rpm, 1.4ata, 480l/h
Climb and combat: 1370PS, 2500rpm, 1.3ata, 440l/h
Emergency power at 10km: 1020PS, 2700rpm.

DB 603E. Length: 2706mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1800PS, 2700rpm, 1.48ata, 580l/h
Climb and combat: 1575PS, 2500rpm, 1.35ata, 490l/h
At critical altitude of 7.0km (emergency), and 7.1km (climb and
combat)
Emergency: 1550PS, 2700rpm, 1.48ata, 510l/h
Climb and combat: 1430PS, 2500rpm, 1.35ata, 460l/h
Emergency power at 10km: 1060PS, 2700rpm.


The similar Me 410 with the DB603A achieved about 388mph at about
21,000ft (supercharger full pressure) and about 391 at its optimal
altitude of around 25000ft. With the never produced DB603G, which had
150 more HP (8%) and a higher critical altitude (7 instead of 5.7) it
should have been at least 2.5% faster ie at least 400mph. The
Wikipedia article on the Me 410 gives only 392mph, which must be
wrong. The DB603E, which was built gave about the same output as the
DB603G. I'd say what is going on here is that optional military
equipment is not being factored in and that the Me 410 quotes speed is
without MW50.
Daryl Hunt
2011-02-15 23:29:44 UTC
Permalink
Post by Eunometic
Post by Rob Arndt
Post by Daryl Hunt
Post by Rob Arndt
Post by Daryl Hunt
Post by Rob Arndt
Post by Eunometic
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one. I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun. The
'observer' faced forward and so aimed at the target using a clever
periscopic sight. This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL. There are two
different top speeds given. The first one is 492 mph and then
it's listed on the same cite as 426. The Range is listed as 2765
as well as 1566 miles. That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable. But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts. You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real? The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats. When it was
actually built, it's speed of 426 mph was contrary to the paper
stats. You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving 3.40m (11’ 1”)
diameter pusher airscrews
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ “Luftwaffe Secret projects: Ground Attack& Special Purpose
Aircraft”, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
The aircraft would have reached near the 492mph had it been proceded
with even without the DB606. One could perhaps subtract 20 mph to
account for a mixture of brochure talk and the absence of military
equipment.
BS. Like the XP-71, giving it more HP with an engine doesn't
make it go faster. 426 is just about right. In fact, the R4360
on the XP-71 made the P-47 go even slower.
Post by Eunometic
The DB606 produced 2700hp over the DB603G 1900hp. However by late
The DB606 was two engines feeding a single gearbox. You lost by
the extra weight added and the extra cooling the engines
required. I would suspect it would have been slower "If it had
ever been built" it wasn't.

The rest is snipped due to you two just postering trying to prove
something that didn't exist.
Eunometic
2011-02-16 02:09:38 UTC
Permalink
Post by Eunometic
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving  3.40m (11� 1�)
diameter pusher airscrews
Span: 57� 5�
Length: 25� 3�
Height: 15� 6�
Wing area: 592�
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965� *
Range: 1506 miles
Ceiling: 40,010�
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ �Luftwaffe Secret projects: Ground Attack&  Special Purpose
Aircraft�, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
The aircraft would have reached near the 492mph had it been proceded
with even without the DB606.  One could perhaps subtract 20 mph to
account for a mixture of brochure talk and the absence of military
equipment.
BS.  Like the XP-71, giving it more HP with an engine doesn't
make it go faster.  426 is just about right.  In fact, the R4360
on the XP-71 made the P-47 go even slower.
The PW R-2800-57(C) engine and the GE CH-5 turbo-supercharger in
combination which could produce 2,800 hp (used on P-47M and P-47N)

The PW R-4356-4 gave 3000hp WEP and 2650hp continius. In other words
the R-4350 provided 7% more powever for twice the weight and at the
cost of a huge underbelly cooler on top of that its doubtfull the WEP
rating was used much at all.

No wonder the XP-72 was slower.

The PW R-4360 was an insance piece of crap. 28 cylinders and 56
sparking plugs. Weight 7,988 lb with propeller,
6,500 lb without propeller 3700lb dry.
Post by Eunometic
The DB606 produced 2700hp over the DB603G 1900hp.   However by late
The DB606 was two engines feeding a single gearbox.  You lost by
the extra weight added and the extra cooling the engines
required.  I would suspect it would have been slower "If it had
ever been built" it wasn't.
DB603A dry weight 925kg
DB601E 690kg ie two of them 1400kg.

The extra weight is trivial and will not effect induced drag at high
speed while well designed radiators compensate their own drag.

In anycase I am pointing out that by late 1944 the DB603LA is offering
2400/2500hp and the DB603N some 2800hp. This is the same power level
anyway.
The rest is snipped due to you two just postering trying to prove
something that didn't exist.- Hide quoted text -
Unlike the R-4360 the DB603L actually provided power gain without
massive weight and drag gain. It did it with better power to weight
ratio and it did it with less drag.

I put in some data. You didn't.

2800hp/1900hp = 1.474. IE 47.4% more power. The cube root of this
is 1.138. ie 13.8% faster.
Even if we take a root to the power of 4 as a compresibillity
correction we get 10% extra speed.
- Show quoted text -
Daryl Hunt
2011-02-17 06:00:36 UTC
Permalink
Post by Eunometic
Post by Daryl Hunt
BS. Like the XP-71, giving it more HP with an engine doesn't
make it go faster. 426 is just about right. In fact, the R4360
on the XP-71 made the P-47 go even slower.
The PW R-2800-57(C) engine and the GE CH-5 turbo-supercharger in
combination which could produce 2,800 hp (used on P-47M and P-47N)
The PW R-4356-4 gave 3000hp WEP and 2650hp continius. In other words
the R-4350 provided 7% more powever for twice the weight and at the
cost of a huge underbelly cooler on top of that its doubtfull the WEP
rating was used much at all.
No wonder the XP-72 was slower.
The PW R-4360 was an insance piece of crap. 28 cylinders and 56
sparking plugs. Weight 7,988 lb with propeller,
6,500 lb without propeller 3700lb dry.
The 4360 went on to be the big hauler for the transport of items
no others could have until the C-5A came along. Not bad for a
1947 design. The only major cargo plane that outlasted Shakey
was the Herkypig. And that is good company to keep. the R4360
was best suited for very, very large AC. One thing it had was
Torque and lots of it. They couldn't put a big enough prop on
the XP-72 to use all the power that engine had. Shakey had a 17
foot 3 bladed Prop. The biggest prop until the short run on the
C-133 with it's 19 foot prop. For being a piece of crap, it
outlasted the 2800, all of the German Recips and the list goes
on. The last 2800 left in the inventory was the C-118 Generals
Birds. And they were taken out of the inventory a year before
Shakey was. Well, that's the official story, anyway. But there
were two 124s still flying for USAF in 1975 out of Anchorage.
Officially, the 124 was retired in 1974. The R4360 outlived
them all.

Now, if they could have figured out a way to swing that massive
prop on a fighter the top speed would have been astounding. But
landing gear just couldn't hold up being that tall. And where do
you fold it into in a fighter? So it goes on to make history in
the C-124 for over 20 years.
Post by Eunometic
Post by Daryl Hunt
Post by Eunometic
The DB606 produced 2700hp over the DB603G 1900hp. However by late
The DB606 was two engines feeding a single gearbox. You lost by
the extra weight added and the extra cooling the engines
required. I would suspect it would have been slower "If it had
ever been built" it wasn't.
DB603A dry weight 925kg
DB601E 690kg ie two of them 1400kg.
You used the DB606 as the engine for the stats, not the 601 or
the 603.

The 603 was 3080 lbs. Now, tie two together adding a Gearbox and
you have a 2700 hp engine that weighs in at a hefty at close to
8000 lbs. This is beyond the design limits. And it still lacked
HP. Why the 606 didn't have X times 2 for hp is anyones guess.
But it appears that it had reached past it's limits. A
conventional 4 engine could realize much more power. I imagine
it had some of the same problems with not being able to get a
prop big enough to handle the torque.
Post by Eunometic
The extra weight is trivial and will not effect induced drag at high
speed while well designed radiators compensate their own drag.
In anycase I am pointing out that by late 1944 the DB603LA is offering
2400/2500hp and the DB603N some 2800hp. This is the same power level
anyway.
Again, the problem with a prop putting out this kind of HP with
the props that were available at the time, you exceed the design
of the props. The best prop out there was the P-47N prop and
it's power was definitely pushing the envelope at 2200 hp.
Post by Eunometic
Post by Daryl Hunt
The rest is snipped due to you two just postering trying to prove
something that didn't exist.- Hide quoted text -
Unlike the R-4360 the DB603L actually provided power gain without
massive weight and drag gain. It did it with better power to weight
ratio and it did it with less drag.
I put in some data. You didn't.
2800hp/1900hp = 1.474. IE 47.4% more power. The cube root of this
is 1.138. ie 13.8% faster.
Even if we take a root to the power of 4 as a compresibillity
correction we get 10% extra speed.
Your data is flawed as usual.

1972 hp on your DB603L under Max Power. This would include
boost. And it was a prototype motor. It never went into
production. Once again, you are using Shoulda Woulda Coulda
comparing it against a real engine that was built and being used.
Guess I could make up shit like you do and include the X4520
which was over 5000 hp but too heavy for an AC motor.

or the Chrysler V-16 at over 2400 hp and weighed in at a svelte
2,430 pounds that pulled an XP-47 to 504 mph. What bagged it?
The Jet age. Otherwise, there would have been some really smokin
inline P-47s running around the skies able to almost run with the
Jets. But I won't use that engine for anything since the US was
smart enough to recognise that the Prop age was past and the Jet
age was upon them. Too bad. They could have used it in Korea.

Your data is inflated as usual.
Keith Willshaw
2011-02-17 08:42:58 UTC
Permalink
1972 hp on your DB603L under Max Power. This would include boost. And it
was a prototype motor. It never went into production. Once again, you
are using Shoulda Woulda Coulda comparing it against a real engine that
was built and being used. Guess I could make up shit like you do and
include the X4520 which was over 5000 hp but too heavy for an AC motor.
Ha a childs toy.

I'll see your X4250 and rais with the Napier Nomad a real monster
of an engine comprising a turbo supercharged diesel, combined
with a turboprop AND an afterburner :)

Keith
Dan
2011-02-17 08:56:28 UTC
Permalink
Post by Keith Willshaw
1972 hp on your DB603L under Max Power. This would include boost. And it
was a prototype motor. It never went into production. Once again, you
are using Shoulda Woulda Coulda comparing it against a real engine that
was built and being used. Guess I could make up shit like you do and
include the X4520 which was over 5000 hp but too heavy for an AC motor.
Ha a childs toy.
I'll see your X4250 and rais with the Napier Nomad a real monster
of an engine comprising a turbo supercharged diesel, combined
with a turboprop AND an afterburner :)
Keith
With a rubber band starter?

Dan, U.S. Air Force, retired
Schiffner
2011-02-17 15:07:11 UTC
Permalink
Post by Keith Willshaw
1972 hp on your DB603L under Max Power.  This would include boost.  And it
was a prototype motor.  It never went into production.  Once again, you
are using Shoulda Woulda Coulda comparing it against a real engine that
was built and being used. Guess I could make up shit like you do and
include the X4520 which was over 5000 hp but too heavy for an AC motor.
Ha a childs toy.
I'll see your X4250 and rais with the Napier Nomad a real monster
of an engine  comprising a turbo supercharged diesel, combined
with a turboprop AND an afterburner :)
  Keith
    With a rubber band starter?
hampster in a wheel.
Schiffner
2011-02-16 00:14:23 UTC
Permalink
Post by Eunometic
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving  3.40m (11’ 1”)
diameter pusher airscrews
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ “Luftwaffe Secret projects: Ground Attack & Special Purpose
Aircraft”, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
The aircraft would have reached near the 492mph had it been proceded
with even without the DB606.  One could perhaps subtract 20 mph to
account for a mixture of brochure talk and the absence of military
equipment.
The DB606 produced 2700hp over the DB603G 1900hp.   However by late
DB603LA which could in its "sonder notleistung" roughtly special
emergency power rating could produce 2400hp at seal level (in fact
2500 at rated altitude see chart) and the DB603N which could produce
2800hp by using C3 95/130 fuel.  These had two stage superchargers and
would have produced their power at a higher altitude than the DB606 as
well as have had considerable greater jet thrust.
Me 329, with its pusher props would have been perfect for inflight
refueling.  (According to Manfred Griel code name "MK 101Z"  in flight
refueling equipment for the He 177 had already been ordered in 1941
but was suspended when the bomber was delayed.  Experiments continued
however and by 1944 a report issued in August note that the hose/
drogue procedure was now 'foolproof' and needed only 2 more months to
prepeare for seriel production)
In german but you can used google translate:http://mitglied.multimania.de/luftwaffe1/do335/do335_3.html
chart of DB603 engines vs altitude:http://www.pimpmyspace.org/comments/code/2389110/
DB 603A. Length: 2610mm, Height: 1167mm, Width: 830mm. (B4 fuel)
At sea level.
T/off and emergency (3'): 1750PS, 2700rpm, 1.4ata, 570l/h
Climb and combat (30'): 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 5.7km
Emergency (3'): 1620PS, 2700rpm, 1.4ata, 530l/h
Climb and combat (30'): 1510PS, 2500rpm, 1.3ata, 460l/h
Emergency power at 10km: 950PS, 2700rpm, .85ata
DB 603AA. Length: 2610mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1670PS, 2700rpm, 1.4ata, 550l/h
Climb and combat: 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 7.3km (emergency), and 7.2km (climb and
combat)
Emergency: 1450PS, 2700rpm, 1.4ata, 480l/h
Climb and combat: 1370PS, 2500rpm, 1.3ata, 440l/h
Emergency power at 10km: 1020PS, 2700rpm.
DB 603E. Length: 2706mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1800PS, 2700rpm, 1.48ata, 580l/h
Climb and combat: 1575PS, 2500rpm, 1.35ata, 490l/h
At critical altitude of 7.0km (emergency), and 7.1km (climb and
combat)
Emergency: 1550PS, 2700rpm, 1.48ata, 510l/h
Climb and combat: 1430PS, 2500rpm, 1.35ata, 460l/h
Emergency power at 10km: 1060PS, 2700rpm.
The similar Me 410 with the DB603A achieved about 388mph at about
21,000ft (supercharger full pressure) and about 391 at  its optimal
altitude of around 25000ft.  With the never produced DB603G, which had
150 more HP (8%) and a higher critical altitude (7 instead of 5.7)  it
should have been at least 2.5% faster ie at least 400mph.   The
Wikipedia article on the Me 410 gives only 392mph, which must be
wrong.   The DB603E, which was built gave about the same output as the
DB603G.   I'd say what is going on here is that optional military
equipment is not being factored in and that the Me 410 quotes speed is
without MW50.- Hide quoted text -
- Show quoted text -
Dead wrong and you aren't using math you are shitting numbers out of
thin air. Guess that makes them farts not shit...either way it stinks.
Eunometic
2011-02-16 13:57:44 UTC
Permalink
Post by Schiffner
Post by Eunometic
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving  3.40m (11’ 1”)
diameter pusher airscrews
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ “Luftwaffe Secret projects: Ground Attack & Special Purpose
Aircraft”, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
The aircraft would have reached near the 492mph had it been proceded
with even without the DB606.  One could perhaps subtract 20 mph to
account for a mixture of brochure talk and the absence of military
equipment.
The DB606 produced 2700hp over the DB603G 1900hp.   However by late
DB603LA which could in its "sonder notleistung" roughtly special
emergency power rating could produce 2400hp at seal level (in fact
2500 at rated altitude see chart) and the DB603N which could produce
2800hp by using C3 95/130 fuel.  These had two stage superchargers and
would have produced their power at a higher altitude than the DB606 as
well as have had considerable greater jet thrust.
Me 329, with its pusher props would have been perfect for inflight
refueling.  (According to Manfred Griel code name "MK 101Z"  in flight
refueling equipment for the He 177 had already been ordered in 1941
but was suspended when the bomber was delayed.  Experiments continued
however and by 1944 a report issued in August note that the hose/
drogue procedure was now 'foolproof' and needed only 2 more months to
prepeare for seriel production)
In german but you can used google translate:http://mitglied.multimania.de/luftwaffe1/do335/do335_3.html
chart of DB603 engines vs altitude:http://www.pimpmyspace.org/comments/code/2389110/
DB 603A. Length: 2610mm, Height: 1167mm, Width: 830mm. (B4 fuel)
At sea level.
T/off and emergency (3'): 1750PS, 2700rpm, 1.4ata, 570l/h
Climb and combat (30'): 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 5.7km
Emergency (3'): 1620PS, 2700rpm, 1.4ata, 530l/h
Climb and combat (30'): 1510PS, 2500rpm, 1.3ata, 460l/h
Emergency power at 10km: 950PS, 2700rpm, .85ata
DB 603AA. Length: 2610mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1670PS, 2700rpm, 1.4ata, 550l/h
Climb and combat: 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 7.3km (emergency), and 7.2km (climb and
combat)
Emergency: 1450PS, 2700rpm, 1.4ata, 480l/h
Climb and combat: 1370PS, 2500rpm, 1.3ata, 440l/h
Emergency power at 10km: 1020PS, 2700rpm.
DB 603E. Length: 2706mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1800PS, 2700rpm, 1.48ata, 580l/h
Climb and combat: 1575PS, 2500rpm, 1.35ata, 490l/h
At critical altitude of 7.0km (emergency), and 7.1km (climb and
combat)
Emergency: 1550PS, 2700rpm, 1.48ata, 510l/h
Climb and combat: 1430PS, 2500rpm, 1.35ata, 460l/h
Emergency power at 10km: 1060PS, 2700rpm.
The similar Me 410 with the DB603A achieved about 388mph at about
21,000ft (supercharger full pressure) and about 391 at  its optimal
altitude of around 25000ft.  With the never produced DB603G, which had
150 more HP (8%) and a higher critical altitude (7 instead of 5.7)  it
should have been at least 2.5% faster ie at least 400mph.   The
Wikipedia article on the Me 410 gives only 392mph, which must be
wrong.   The DB603E, which was built gave about the same output as the
DB603G.   I'd say what is going on here is that optional military
equipment is not being factored in and that the Me 410 quotes speed is
without MW50.- Hide quoted text -
- Show quoted text -
Dead wrong and you aren't using math you are shitting numbers out of
thin air.  Guess that makes them farts not shit...either way it stinks.- Hide quoted text -
- Show quoted text -
Drag Force Equation
1 F = 0.5 x AirDenisty x Cd x v^2
Power Equation
2 P = F x v (from Work = F x s, dW/dt = P = F x ds/dt)

Put equation 1 into 2

P = 0.5 x AirDenisty x Cd x v^3

You can now see the effect of varying P or Cd.
Schiffner
2011-02-16 16:09:30 UTC
Permalink
Post by Eunometic
Post by Schiffner
Post by Eunometic
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving  3.40m (11’ 1”)
diameter pusher airscrews
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ “Luftwaffe Secret projects: Ground Attack & Special Purpose
Aircraft”, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
The aircraft would have reached near the 492mph had it been proceded
with even without the DB606.  One could perhaps subtract 20 mph to
account for a mixture of brochure talk and the absence of military
equipment.
The DB606 produced 2700hp over the DB603G 1900hp.   However by late
DB603LA which could in its "sonder notleistung" roughtly special
emergency power rating could produce 2400hp at seal level (in fact
2500 at rated altitude see chart) and the DB603N which could produce
2800hp by using C3 95/130 fuel.  These had two stage superchargers and
would have produced their power at a higher altitude than the DB606 as
well as have had considerable greater jet thrust.
Me 329, with its pusher props would have been perfect for inflight
refueling.  (According to Manfred Griel code name "MK 101Z"  in flight
refueling equipment for the He 177 had already been ordered in 1941
but was suspended when the bomber was delayed.  Experiments continued
however and by 1944 a report issued in August note that the hose/
drogue procedure was now 'foolproof' and needed only 2 more months to
prepeare for seriel production)
In german but you can used google translate:http://mitglied.multimania.de/luftwaffe1/do335/do335_3.html
chart of DB603 engines vs altitude:http://www.pimpmyspace.org/comments/code/2389110/
DB 603A. Length: 2610mm, Height: 1167mm, Width: 830mm. (B4 fuel)
At sea level.
T/off and emergency (3'): 1750PS, 2700rpm, 1.4ata, 570l/h
Climb and combat (30'): 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 5.7km
Emergency (3'): 1620PS, 2700rpm, 1.4ata, 530l/h
Climb and combat (30'): 1510PS, 2500rpm, 1.3ata, 460l/h
Emergency power at 10km: 950PS, 2700rpm, .85ata
DB 603AA. Length: 2610mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1670PS, 2700rpm, 1.4ata, 550l/h
Climb and combat: 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 7.3km (emergency), and 7.2km (climb and
combat)
Emergency: 1450PS, 2700rpm, 1.4ata, 480l/h
Climb and combat: 1370PS, 2500rpm, 1.3ata, 440l/h
Emergency power at 10km: 1020PS, 2700rpm.
DB 603E. Length: 2706mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1800PS, 2700rpm, 1.48ata, 580l/h
Climb and combat: 1575PS, 2500rpm, 1.35ata, 490l/h
At critical altitude of 7.0km (emergency), and 7.1km (climb and
combat)
Emergency: 1550PS, 2700rpm, 1.48ata, 510l/h
Climb and combat: 1430PS, 2500rpm, 1.35ata, 460l/h
Emergency power at 10km: 1060PS, 2700rpm.
The similar Me 410 with the DB603A achieved about 388mph at about
21,000ft (supercharger full pressure) and about 391 at  its optimal
altitude of around 25000ft.  With the never produced DB603G, which had
150 more HP (8%) and a higher critical altitude (7 instead of 5.7)  it
should have been at least 2.5% faster ie at least 400mph.   The
Wikipedia article on the Me 410 gives only 392mph, which must be
wrong.   The DB603E, which was built gave about the same output as the
DB603G.   I'd say what is going on here is that optional military
equipment is not being factored in and that the Me 410 quotes speed is
without MW50.- Hide quoted text -
- Show quoted text -
Dead wrong and you aren't using math you are shitting numbers out of
thin air.  Guess that makes them farts not shit...either way it stinks.- Hide quoted text -
- Show quoted text -
Drag Force Equation
1  F = 0.5 x AirDenisty x Cd x v^2
Power Equation
2  P = F x v   (from Work = F x s,  dW/dt = P = F x ds/dt)
Put equation 1 into 2
P =   0.5 x AirDenisty x Cd x v^3
You can now see the effect of varying P or Cd.- Hide quoted text -
- Show quoted text -
yes but you still shit the numbers. It's been over decade for me but
when was the last time you designed an airframe? taking into acount
the nose moment, tail moment span, chord V and H surface areas and
what aspect you wanted ? mmm, much less keeping the frontal area as
small as possible taking into acount the power plant being used...then
there is the whole issue of figuring the the CoB, CoG. LG type and
placement and how retraction will or will not effect the CoB and CoG
(which by the way are NOT the same)

You can play with numbers all day...but can you look at the aircraft
and tell if it has a chance? hmm? It isn't easy...but I can. That's
why I said you shit your numbers...shitting numbers means nothing
until you fly, until then it's just a hypothesis.
bbrought
2011-02-16 16:24:57 UTC
Permalink
Post by Eunometic
Post by Schiffner
Post by Eunometic
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving  3.40m (11’ 1”)
diameter pusher airscrews
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ “Luftwaffe Secret projects: Ground Attack & Special Purpose
Aircraft”, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
The aircraft would have reached near the 492mph had it been proceded
with even without the DB606.  One could perhaps subtract 20 mph to
account for a mixture of brochure talk and the absence of military
equipment.
The DB606 produced 2700hp over the DB603G 1900hp.   However by late
DB603LA which could in its "sonder notleistung" roughtly special
emergency power rating could produce 2400hp at seal level (in fact
2500 at rated altitude see chart) and the DB603N which could produce
2800hp by using C3 95/130 fuel.  These had two stage superchargers and
would have produced their power at a higher altitude than the DB606 as
well as have had considerable greater jet thrust.
Me 329, with its pusher props would have been perfect for inflight
refueling.  (According to Manfred Griel code name "MK 101Z"  in flight
refueling equipment for the He 177 had already been ordered in 1941
but was suspended when the bomber was delayed.  Experiments continued
however and by 1944 a report issued in August note that the hose/
drogue procedure was now 'foolproof' and needed only 2 more months to
prepeare for seriel production)
In german but you can used google translate:http://mitglied.multimania.de/luftwaffe1/do335/do335_3.html
chart of DB603 engines vs altitude:http://www.pimpmyspace.org/comments/code/2389110/
DB 603A. Length: 2610mm, Height: 1167mm, Width: 830mm. (B4 fuel)
At sea level.
T/off and emergency (3'): 1750PS, 2700rpm, 1.4ata, 570l/h
Climb and combat (30'): 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 5.7km
Emergency (3'): 1620PS, 2700rpm, 1.4ata, 530l/h
Climb and combat (30'): 1510PS, 2500rpm, 1.3ata, 460l/h
Emergency power at 10km: 950PS, 2700rpm, .85ata
DB 603AA. Length: 2610mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1670PS, 2700rpm, 1.4ata, 550l/h
Climb and combat: 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 7.3km (emergency), and 7.2km (climb and
combat)
Emergency: 1450PS, 2700rpm, 1.4ata, 480l/h
Climb and combat: 1370PS, 2500rpm, 1.3ata, 440l/h
Emergency power at 10km: 1020PS, 2700rpm.
DB 603E. Length: 2706mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1800PS, 2700rpm, 1.48ata, 580l/h
Climb and combat: 1575PS, 2500rpm, 1.35ata, 490l/h
At critical altitude of 7.0km (emergency), and 7.1km (climb and
combat)
Emergency: 1550PS, 2700rpm, 1.48ata, 510l/h
Climb and combat: 1430PS, 2500rpm, 1.35ata, 460l/h
Emergency power at 10km: 1060PS, 2700rpm.
The similar Me 410 with the DB603A achieved about 388mph at about
21,000ft (supercharger full pressure) and about 391 at  its optimal
altitude of around 25000ft.  With the never produced DB603G, which had
150 more HP (8%) and a higher critical altitude (7 instead of 5.7)  it
should have been at least 2.5% faster ie at least 400mph.   The
Wikipedia article on the Me 410 gives only 392mph, which must be
wrong.   The DB603E, which was built gave about the same output as the
DB603G.   I'd say what is going on here is that optional military
equipment is not being factored in and that the Me 410 quotes speed is
without MW50.- Hide quoted text -
- Show quoted text -
Dead wrong and you aren't using math you are shitting numbers out of
thin air.  Guess that makes them farts not shit...either way it stinks.- Hide quoted text -
- Show quoted text -
Drag Force Equation
1  F = 0.5 x AirDenisty x Cd x v^2
Power Equation
2  P = F x v   (from Work = F x s,  dW/dt = P = F x ds/dt)
Put equation 1 into 2
P =   0.5 x AirDenisty x Cd x v^3
You can now see the effect of varying P or Cd.
D = 0.5 x rho x V^2 x S x CD
(Note the wing reference area S, missing from your equation)

P = 0.5 x rho x V^3 x S x CD
Eunometic
2011-02-16 22:03:24 UTC
Permalink
Post by bbrought
Post by Eunometic
Post by Schiffner
Post by Eunometic
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
Detail design of the Me-265 was still in progress when Dr. Alexander
Lippisch together with Dr-Ing Hermann Wurster began design work on the
two-seat P.10 (later Me-329) Zerstorer project, both proposed as
comparative studies with the Me-410.
Unlike the Me-265 which employed much of the slender oval cross-
section fuselage of the Me-210 with its tandem-seated crew of two, the
Me-329 had a wider fuselage of circular cross-section housing the two
crew members side-by-side beneath a bubble canopy. Of tailless layout
with a broad-chord tapered mid-wing, its two DB 603G engines in wing
nacelles drove four-bladed pusher propellers via extension shafts. Its
estimated maximum speed of 685km/h (426 mph) at rated altitude was
much higher than the Bf 110 and Me-210. Armament carried was also
formidable: in addition to the nose-mounted four MK-108s (with
provision for a MK-114), it had two MG-151/20s in the nose and tail,
the latter movable through a 90o arc and remote-controlled by a rear-
view periscope. The internal bomb bay could house a SC-1000 bomb.
In the winter of 1944/45, a full-scale motor-less glider was flight-
tested in tow behind a tow0craft in Rechlin, but due to the adverse
war situation, work on the Me-329 was terminated at the beginning of
1945.
Powerplants: 2x 1750hp DB 603G engines driving  3.40m (11’ 1”)
diameter pusher airscrews
Span: 57’ 5”
Length: 25’ 3”
Height: 15’ 6”
Wing area: 592’
Weights: 15322 lb empty, 26786 lb loaded
Max. Speed: 426 mph at 22,965’ *
Range: 1506 miles
Ceiling: 40,010’
Armament: 2x 20mm MG-151/20 in the nose, 4x 30mm MK-108 in the nose,
(optional MK-114 in the nose), and 1x 20mm MG-151/20 in the tail
Bombload: 1000kg (2205 lb) internally
~ “Luftwaffe Secret projects: Ground Attack & Special Purpose
Aircraft”, pgs.126-127
* Note that the max speed of 492 mph was calculated with 2x 2700 hp DB
606 engines which was proposed as well but rejected.
The aircraft would have reached near the 492mph had it been proceded
with even without the DB606.  One could perhaps subtract 20 mph to
account for a mixture of brochure talk and the absence of military
equipment.
The DB606 produced 2700hp over the DB603G 1900hp.   However by late
DB603LA which could in its "sonder notleistung" roughtly special
emergency power rating could produce 2400hp at seal level (in fact
2500 at rated altitude see chart) and the DB603N which could produce
2800hp by using C3 95/130 fuel.  These had two stage superchargers and
would have produced their power at a higher altitude than the DB606 as
well as have had considerable greater jet thrust.
Me 329, with its pusher props would have been perfect for inflight
refueling.  (According to Manfred Griel code name "MK 101Z"  in flight
refueling equipment for the He 177 had already been ordered in 1941
but was suspended when the bomber was delayed.  Experiments continued
however and by 1944 a report issued in August note that the hose/
drogue procedure was now 'foolproof' and needed only 2 more months to
prepeare for seriel production)
In german but you can used google translate:http://mitglied.multimania.de/luftwaffe1/do335/do335_3.html
chart of DB603 engines vs altitude:http://www.pimpmyspace.org/comments/code/2389110/
DB 603A. Length: 2610mm, Height: 1167mm, Width: 830mm. (B4 fuel)
At sea level.
T/off and emergency (3'): 1750PS, 2700rpm, 1.4ata, 570l/h
Climb and combat (30'): 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 5.7km
Emergency (3'): 1620PS, 2700rpm, 1.4ata, 530l/h
Climb and combat (30'): 1510PS, 2500rpm, 1.3ata, 460l/h
Emergency power at 10km: 950PS, 2700rpm, .85ata
DB 603AA. Length: 2610mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1670PS, 2700rpm, 1.4ata, 550l/h
Climb and combat: 1580PS, 2500rpm, 1.3ata, 460l/h
At critical altitude of 7.3km (emergency), and 7.2km (climb and
combat)
Emergency: 1450PS, 2700rpm, 1.4ata, 480l/h
Climb and combat: 1370PS, 2500rpm, 1.3ata, 440l/h
Emergency power at 10km: 1020PS, 2700rpm.
DB 603E. Length: 2706mm, Height: 1167mm, Width: 830mm (B4 fuel)
At sea level.
T/off and emergency: 1800PS, 2700rpm, 1.48ata, 580l/h
Climb and combat: 1575PS, 2500rpm, 1.35ata, 490l/h
At critical altitude of 7.0km (emergency), and 7.1km (climb and
combat)
Emergency: 1550PS, 2700rpm, 1.48ata, 510l/h
Climb and combat: 1430PS, 2500rpm, 1.35ata, 460l/h
Emergency power at 10km: 1060PS, 2700rpm.
The similar Me 410 with the DB603A achieved about 388mph at about
21,000ft (supercharger full pressure) and about 391 at  its optimal
altitude of around 25000ft.  With the never produced DB603G, which had
150 more HP (8%) and a higher critical altitude (7 instead of 5.7)  it
should have been at least 2.5% faster ie at least 400mph.   The
Wikipedia article on the Me 410 gives only 392mph, which must be
wrong.   The DB603E, which was built gave about the same output as the
DB603G.   I'd say what is going on here is that optional military
equipment is not being factored in and that the Me 410 quotes speed is
without MW50.- Hide quoted text -
- Show quoted text -
Dead wrong and you aren't using math you are shitting numbers out of
thin air.  Guess that makes them farts not shit...either way it stinks.- Hide quoted text -
- Show quoted text -
Drag Force Equation
1  F = 0.5 x AirDenisty x Cd x v^2
Power Equation
2  P = F x v   (from Work = F x s,  dW/dt = P = F x ds/dt)
Put equation 1 into 2
P =   0.5 x AirDenisty x Cd x v^3
You can now see the effect of varying P or Cd.
D = 0.5 x rho x V^2 x S x CD
(Note the wing reference area S, missing from your equation)
P = 0.5 x rho x V^3 x S x CD- Hide quoted text -
- Show quoted text -
It doesn't matter for purposes of evaluating the effect of small
variations in power, so long as we are below Mc.
bbrought
2011-02-17 04:26:59 UTC
Permalink
Post by Eunometic
Post by bbrought
Post by Eunometic
Drag Force Equation
1  F = 0.5 x AirDenisty x Cd x v^2
Power Equation
2  P = F x v   (from Work = F x s,  dW/dt = P = F x ds/dt)
Put equation 1 into 2
P =   0.5 x AirDenisty x Cd x v^3
You can now see the effect of varying P or Cd.
D = 0.5 x rho x V^2 x S x CD
(Note the wing reference area S, missing from your equation)
P = 0.5 x rho x V^3 x S x CD- Hide quoted text -
- Show quoted text -
It doesn't matter for purposes of evaluating the effect of small
variations in power, so long as we are below Mc.
Well, someone had to correct you. A wrong equation is a wrong
equation.

Anyway, many of your "predictions" involve power variations that are
not small, so that neither CD nor prop efficiency stay the same. Since
you are working with aircraft maximum speed, they are all on the right
hand side of best L/D, which means both your CD and prop efficiency
always gets worse as you add power. I don't know whether you ignore
this deliberately to make sure you always give the most optimistic
result, or if it is simply due to a lack of knowledge/experience. Fact
is, all your results - without exception - that I have seen on here
are optimistic. Sometimes more so then others, but they are always
optimistic.
Eunometic
2011-02-17 06:33:33 UTC
Permalink
Post by bbrought
Post by Eunometic
Post by bbrought
Post by Eunometic
Drag Force Equation
1  F = 0.5 x AirDenisty x Cd x v^2
Power Equation
2  P = F x v   (from Work = F x s,  dW/dt = P = F x ds/dt)
Put equation 1 into 2
P =   0.5 x AirDenisty x Cd x v^3
You can now see the effect of varying P or Cd.
D = 0.5 x rho x V^2 x S x CD
(Note the wing reference area S, missing from your equation)
P = 0.5 x rho x V^3 x S x CD- Hide quoted text -
- Show quoted text -
It doesn't matter for purposes of evaluating the effect of small
variations in power, so long as we are below Mc.
Well, someone had to correct you. A wrong equation is a wrong
equation.
Anyway, many of your "predictions" involve power variations that are
not small, so that neither CD nor prop efficiency stay the same. Since
you are working with aircraft maximum speed, they are all on the right
hand side of best L/D, which means both your CD and prop efficiency
always gets worse as you add power. I don't know whether you ignore
this deliberately to make sure you always give the most optimistic
result, or if it is simply due to a lack of knowledge/experience. Fact
is, all your results - without exception - that I have seen on here
are optimistic. Sometimes more so then others, but they are always
optimistic.- Hide quoted text -
- Show quoted text -
Invariably, these methods when applied to known aircraft that were
given an engine boost work very well. A little care needs to be
taken to not apply TO and low altitude power increase to say high
altitude performance.

I've done the calculations over a spreadsheet, it is clear you have
not.

A well desinged wing and well designed prop will maintain efficiency
to nearly Mach 0.7 so long as the power loading is high.

For instance Spitfire III with its 1260hp engine versus the Spitifre V
with 1500.
The work with the early FW 190A2 and its BMW801C engine at 1.3 ata
versus the 1.42 ata on the FW190A4 with the 801C.

In addition the big power increase of an engine are associated with
substantial jet thrust. The conforms to a power of two law not a
power of 3 law and by ignoring this one compensates somewhat for
efficiency losses of the prop at high speed.
bbrought
2011-02-17 06:54:44 UTC
Permalink
Post by Eunometic
I've done the calculations over a spreadsheet, it is clear you have
not.
You have no idea what I have done and what I haven't done. Suffice to
say I do these things for a living, and the calculations showed here
are so trivial that the only time we would use them is when someone
wants a quick answer in the middle of a meeting that is better than a
random guess. Your comments about performance at high subsonic Mach
numbers (and apparently you still don't grasp that Mach 0.7 is a high
subsonic Mach number, especially for a propeller driven aircraft)
unfortunately immediately give your lack of experience away.
Similarly, in the other thread where you completely misinterpreted a
NACA report and then went quiet when I gave you a proper reference,
just underlines what I say. Anyone who had ever seen measured
propeller performance graphs would immediately have realised there was
more to it when numbers of 90% efficiency appeared, but you got so
excited that you just had to post it immediately. Sadly, a few
gullible readers here seem to take you seriously - if that wasn't the
case I wouldn't even have bothered to participate. And yes, I realise
you are not the only one who does it - but you are one of the few who
insist on using flawed analytical analysis to prove your point.
Jim Wilkins
2011-02-17 13:19:17 UTC
Permalink
Post by bbrought
Post by Eunometic
I've done the calculations over a spreadsheet, it is clear you have
not.
You have no idea what I have done and what I haven't done. Suffice to
say I do these things for a living, .....
.....Sadly, a few
gullible readers here seem to take you seriously - if that wasn't the
case I wouldn't even have bothered to participate. And yes, I realise
you are not the only one who does it - but you are one of the few who
insist on using flawed analytical analysis to prove your point.
Welcome to the club. We've been debunking his and Arndt's Nazi
revisionist propaganda for years. At least he has stopped trying to
snow everyone with long German words he can't spell and doesn't
understand.

Keep contributing. The archive of this group refutes nearly all of the
old claims of how the Axis coulda won the war.

jsw
Dan
2011-02-17 13:59:46 UTC
Permalink
Post by Jim Wilkins
Post by bbrought
Post by Eunometic
I've done the calculations over a spreadsheet, it is clear you have
not.
You have no idea what I have done and what I haven't done. Suffice to
say I do these things for a living, .....
.....Sadly, a few
gullible readers here seem to take you seriously - if that wasn't the
case I wouldn't even have bothered to participate. And yes, I realise
you are not the only one who does it - but you are one of the few who
insist on using flawed analytical analysis to prove your point.
Welcome to the club. We've been debunking his and Arndt's Nazi
revisionist propaganda for years. At least he has stopped trying to
snow everyone with long German words he can't spell and doesn't
understand.
Keep contributing. The archive of this group refutes nearly all of the
old claims of how the Axis coulda won the war.
jsw
The funny part is our Nazi twins actually think Luft46 is reliable
source. I'm not sure it's an improvement over the plastic model kits
aren't has been known to trot out as proof. Remember when she used a kit
to prove the existence of an Ar-234 "AWACS?"

Dan, U.S. Air Force, retired
vaughn
2011-02-17 14:25:05 UTC
Permalink
Post by Eunometic
I've done the calculations over a spreadsheet, it is clear you have
not.
Sadly, a few gullible readers here seem to take you seriously -
And others of us stopped reading his faulty bunk years ago.

Vaughn
Eunometic
2011-02-15 06:20:51 UTC
Permalink
Post by Rob Arndt
Post by Rob Arndt
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
Curtiss's record after the P-40 is not a good one.  I bet on the Me
329.
Post by Rob Arndt
Me-329 Art fighting XP-71s:http://www.luft46.com/jgart/jg329-8.jpg
The Me 329 was to have a remote controlled rearward firing gun.  The
'observer' faced forward and so aimed at the target using a clever
periscopic sight.   This is missing in the painting.
Post by Rob Arndt
Me-329 mock-up:http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me...
Rob- Hide quoted text -
- Show quoted text -
http://www.luft46.com/mess/me329.html
http://www.luft46.com/jgart/jg329-1.jpg
Yeah, I was a bit sad that the Me-329 was not built instead too...
Rob
There are a couple of inconsistencies in your URL.  There are two
different top speeds given.  The first one is 492 mph and then
it's listed on the same cite as 426.  The Range is listed as 2765
as well as 1566 miles.  That has got to be the worst Cite I have
ever seen.
Once again, Luft46 shows why it's not a viable site for anything
other than a bunch of pictures.
I can buy the second stats as it's very attainable.  But the
first stats are just a pipers dream.- Hide quoted text -
- Show quoted text -
Range: 2765 miles
Range at best GLIDE ratio: 1255 miles
Horizontal speed (level) at maximum pressure altitude: 426 mph
Maximum Speed:492 mph (which is probably at a mid-ceiling height)
It helps to actually read the charts :)
I did read the charts.  You are reading into them to justify your
claims.
Since it was never flown under power, just how do you know these
stats would be real?  The XP-72 should have been a barn burner
approaching 500 mph if you go by the paper stats.  When it was
actually built, it's speed of 426 mph was contrary to the paper
stats.  You have to Built it before you can believe the stats.
In fact, you have to build it and fly it to actually HAVE stats.- Hide quoted text -
- Show quoted text -
The Pratt + Whitney R-4360-4 and various versions was producing at
most 3000hp WEP up to the 1945 period, in fact it does not seem to
have stepped beyond 2650hp often. At the time advanced versions of
the R-2800 were producing 2800hp with both turbo-surpercharged and
mechnical supercharged versions reaching that level. I believe the
XP-72 reached 480mph no 426, in what condition I don't know.

I don't believe the XP-72 would have flown much faster even with more
power. It is possible to get an piston prop aircraft to fly at Mach
0.9 just as it is possible to get a turbo prop to fly at that speed
and faster however aircraft such as the Bearcat, XP-72 simply don't
have the aerodynamics: the wing sections are wrong for subsonic
aircraft, they lack any wing sweep, there is no area ruling and their
blunt aircooled nozes will cause a shock buildup.

Ofcourse there were those who understood this and were working on some
advanced piston aerodynamics like this 577mph beauty:
http://www.luft46.com/dornier/dop252.html
Daryl Hunt
2011-02-15 15:51:36 UTC
Permalink
Post by Eunometic
The Pratt + Whitney R-4360-4 and various versions was producing at
most 3000hp WEP up to the 1945 period, in fact it does not seem to
have stepped beyond 2650hp often. At the time advanced versions of
the R-2800 were producing 2800hp with both turbo-surpercharged and
mechnical supercharged versions reaching that level. I believe the
XP-72 reached 480mph no 426, in what condition I don't know.
I don't believe the XP-72 would have flown much faster even with more
power. It is possible to get an piston prop aircraft to fly at Mach
0.9 just as it is possible to get a turbo prop to fly at that speed
and faster however aircraft such as the Bearcat, XP-72 simply don't
have the aerodynamics: the wing sections are wrong for subsonic
aircraft, they lack any wing sweep, there is no area ruling and their
blunt aircooled nozes will cause a shock buildup.
It was a super P-47 and the P-47 did okay itself. The P-47N was
fast enough and the XP-72 was not needed. 480mph during that
time frame was average. Especially with the P-80 getting ready
to come on line. But one thing you don't look at is, the R4360
swung a massive prop. It had torque up the wassoo. Have you
ever been around one just taxing by? I used to work on the
C-124. It rumbled and shook the ground just taxing. But I doubt
if it could have gone faster for the reasons you stated. It just
bulled it's way to 480mph.
Post by Eunometic
Ofcourse there were those who understood this and were working on some
http://www.luft46.com/dornier/dop252.html
That's one of the fastest Denny's Napkins I have ever seen.
Ken S. Tucker
2011-02-17 12:51:20 UTC
Permalink
On Feb 14, 10:20 pm, Eunometic <***@yahoo.com.au> wrote:
...
Post by Eunometic
I don't believe the XP-72 would have flown much faster even with more
power. It is possible to get an piston prop aircraft to fly at Mach
0.9 just as it is possible to get a turbo prop to fly at that speed
and faster however aircraft such as the Bearcat, XP-72 simply don't
have the aerodynamics: the wing sections are wrong for subsonic
aircraft, they lack any wing sweep, there is no area ruling and their
blunt aircooled nozes will cause a shock buildup.
The Bearcat was designed as a versatile naval a/c, that it went so
darn fast means the designers knew what they were doing.
Post by Eunometic
Ofcourse there were those who understood this and were working on some
advanced piston aerodynamics like this 577mph beauty:http://www.luft46.com/dornier/dop252.html
There's problems with pushers,
1) the props operate in 'shitty' turbulence,
2) hub suction.
3) gear
There is no way I've seen that gets around those problems,
without compromises.
That dop 252 is way over optimistic at 500+.
Ken
Daryl Hunt
2011-02-14 18:52:37 UTC
Permalink
Post by Rob Arndt
http://en.wikipedia.org/wiki/Curtiss_XP-71
http://www.luft46.com/jgart/jg329-8.jpg
http://www.cockpitinstrumente.de/Flugzeuge/Projekte/Me%20329/gross/Me_329_-2.jpg
Rob
Huge difference. One XP-71 was actually built and it's stats are
real. There never was a ME-329 built past a glider. It's stats
are more than suspect.

Try a good dose of reality. In order to get the type of speed
with a Prop you are going to need a whole lot more HP than your
ME-329 was programmed for.

You only had 1726 hp after TO times 2. The XP-71 had 2 X 3450 hp
and could only reach 426 mph. The Mythical 492 mph would have to
have closer to 5000 hp per engine and nothing the Germans even
had on the planning board could reach that for an extended time.

The only recip engines that could produce that much power were
the X engines that proved not worth furthering. And out of all
the X engines, the only X engine that could produce that much
power was the Allison 4520. All of them had more problems than
was thought to be necessary. And abandoned.

It took a couple of real hotrods to reach those kinds of speeds
with a prop and they were no longer Military Prop Fighters. They
were converted to Race Aircraft.

Your stats are just plain made up regardless of you did the
making up.
WaltBJ
2011-02-16 02:32:57 UTC
Permalink
Interesting in that if you lost one engine on the 329 the only actions
possible would be either bail out immediately or shut off the other
engine and glide for a landing or a bailout close to home. The first
guy to test-hop one would either have to have a death-wish or be
forced aboard at gun-point.
Walt BJ
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