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TheGozr
03-21-2004, 12:51 AM
Interesting plane .
Anyone has pics and infos?

The XP's series
-GOZR
http://www.french.themotorhead.com/themotorhead_fighters/images/pix/il2fbtmhlogosmall.jpg <--Uncensored version IL2fb here (http://www.french.themotorhead.com/themotorhead_fighters/)

TheGozr
03-21-2004, 12:51 AM
Interesting plane .
Anyone has pics and infos?

The XP's series
-GOZR
http://www.french.themotorhead.com/themotorhead_fighters/images/pix/il2fbtmhlogosmall.jpg &lt;--Uncensored version IL2fb here (http://www.french.themotorhead.com/themotorhead_fighters/)

TheGozr
03-21-2004, 09:52 AM
Didn't know that no one knew those planes..

XP60
http://www.wpafb.af.mil/museum/research/p60s.jpg

XP46
http://www.wpafb.af.mil/museum/research/p46s.jpg

XP55
http://www.wpafb.af.mil/museum/research/p55s.jpg

XP56
http://www.wpafb.af.mil/museum/research/p56s.jpg

XP49
http://www.wpafb.af.mil/museum/research/p49s.jpg

XP41
http://www.centennialofflight.gov/essay/Aerospace/Seversky/Aero42G5.jpg

Great stuff http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

http://history.nasa.gov/SP-4305/ch7.htm#198
-GOZR
http://www.french.themotorhead.com/themotorhead_fighters/images/pix/il2fbtmhlogosmall.jpg &lt;--Uncensored version IL2fb here (http://www.french.themotorhead.com/themotorhead_fighters/)

[This message was edited by TheGozr on Sun March 21 2004 at 10:38 AM.]

Chuck_Older
03-21-2004, 10:02 AM
I have some understanding of them. In fact I just touched on the XP-60 in the post titled "Mustang Performance".

XP-40 was flown in October of 1938, It was a re-work of the P-36A with an Allison V-1710-19 engine.

XP-60 was basically a P-40 development with a laminar flow wing. XP-60A featured a redesigned fuselage mated with a laminar flow wing andan Allison with a turbo-supercharger. It could reach 420 mph by some accounts.

I'm not an expert on these aircraft, but it seems to me that P-51 developments had already exceeded these (XP-60 and XP-60A) airframe's performance numbers and they were therefore obsolete almost instantly.


The XP-55 had several odd problems revolving around engine cooling, stall characteristics, and an over-control situation at low speed. In addition, it was no great aircraft in terms of speed, so it's further development was not considered justified.
*****************************
Wave bub-bub-bub-bye to the boss, it's your profit, it's his loss~ Clash

TheGozr
03-21-2004, 11:40 AM
Langley Drag Reduction Program, April 1938-November 1940


RA no.

Date
Airplane
.

603
June 1938
Brewster XF2A-1 Buffalo

603
June 1938
Grumman F3F-2607

607
June 1938
Grumman XF4F-2 Wildcat

633
August 1938
Vought-Sikorsky SB2U-1 Vindicator

635
August 1938
Curtiss XP-37

636
August 1938
Curtiss P-36A Mohawk

637
August 1938
Curtiss XP-40 Kittyhawk

646
December 1938
Douglas XBT-2

647
December 1938
Curtiss YP-37

672
June 1939
Seversky XP-41

674
June 1939
Bell XP-39 Airacobra

695
September 1939
Curtiss XP-42

698
September 1939
Grumman XF4F-3 Wildcat

709
November 1939
Curtiss XP-46

739
May 1940
Republic XP-47 Thunderbolt

746
September 1940
Chance Vought XF4U-1 Corsair

796
October 1940
Brewster XF2A-2 Buffalo

797
October 1940
Curtiss XSO3C-1

811
November 1940
Consolidated XB-32 Dominator

-GOZR
http://www.french.themotorhead.com/themotorhead_fighters/images/pix/il2fbtmhlogosmall.jpg &lt;--Uncensored version IL2fb here (http://www.french.themotorhead.com/themotorhead_fighters/)

Janacek
03-21-2004, 12:35 PM
See also the XP72--it was Republic's immediate successor to the Thunderbolt and is one of the meanest-sounding-looking "might have beens" I've read about. Jets had made it obsolete from the outset, but it had top speeds in the 490 mph zone and phenomenal performance. Pretty cool. See the following links--haven't found any very good pictures of it on the web, though.
wpafb.af.mil/museum/research/p72.htm
aeroweb.brooklyn.cuny.edu/specs/republic/xp-72.htm

JR_Greenhorn
03-21-2004, 12:52 PM
Curtiss made many attempts to build a sucsessor to the P-40 series. In addition to better performing planes by competitors, management problems at Curtiss during the war crippled thier efforts.

The XP-54, XP-55, and XP-56 were all entries in a design competition that called for unorthodox fighter designs. The hoped for performance superiority was not found in these designs, and development problems precluded their supplanting conventional designs.

The XP-41 is not related to the P-40. Rather, it is part of the P-35~P-41~P-43~P-47~P-72 chain of evolution of Seversky/Republic aviation.

TheGozr
03-21-2004, 12:59 PM
XP72
The XP-72 was a more-or-less straightforward progressive development of the P-47 Thunderbolt, designed to be a successor for that very successful aircraft. With a 3450 hp engine, a maximum speed of 500mph was hoped for. After favorable testing of the prototype, the USAAF ordered 100 examples, though the contract was cancelled with the changing course of the war. Only the two prototypes were built, one of which crashed, and the other was eventually scrapped.

http://home.att.net/~jbaugher1/p72.html

http://www.wpafb.af.mil/museum/research/p72-2.jpg

http://www.wpafb.af.mil/museum/research/p72-1.jpg
TYPE
XP-72 Number built/Converted
2 Remarks
Imp. P-47; V-1 interceptor
SPECIFICATIONS
Span: 40 ft. 11 in.
Length: 36 ft. 7 in.
Height: 16 ft. 0 in.
Armament: Six .50-cal. machine guns (production version designed for four 37mm cannon and two 1,000 lb. bombs)
Engine: One supercharged Pratt & Whitney R-4360 of 3,500 hp.
Crew: One
PERFORMANCE
Maximum speed: 490 mph
Cruising speed: 300 mph
Range: 1,200 miles
Service ceiling: 42,000 ft.


Very nice looking plane http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

-GOZR
http://www.french.themotorhead.com/themotorhead_fighters/images/pix/il2fbtmhlogosmall.jpg &lt;--Uncensored version IL2fb here (http://www.french.themotorhead.com/themotorhead_fighters/)

JR_Greenhorn
03-21-2004, 01:07 PM
You know what I like best about the XP-72?
That Engine!

By the by, That Engine! also powered the F2G, XF8B, XB-35, B-36, B-50...

The F2G, now thats an interesting plane. It climbs like an angry monkey. As far as I know, it should out-climb just about any prop plane of the era.