To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.

Lockheed XP-49

From Wikipedia, the free encyclopedia

Lockheed XP-49 061023-F-1234P-002.jpg
Role Fighter
National origin United States
Manufacturer Lockheed Corporation
Designer Clarence Johnson
First flight 14 November 1942
Status Cancelled
Number built 1
Developed from Lockheed P-38 Lightning

The Lockheed XP-49 (company Model 522) was an advancement on the P-38 Lightning for a fighter in response to U.S. Army Air Corps proposal 39-775. Intended to use the new 24-cylinder Pratt & Whitney X-1800 engine, this proposal, which was for an aircraft substantially similar to the P-38, was assigned the designation XP-49, while the competing Grumman Model G-46 was awarded second place and designated XP-50.


Ordered in October 1939 and approved on January 8, 1940, the XP-49 was to feature a pressurized cockpit and armament of two 20 mm (0.79 in) cannon and four .50 in (12.7 mm) machine guns. Two months into the contract, a decision was made to substitute the Continental XI-1430-1 (or IV-1430) for the X-1800. The XP-49, 40-3055, first flew on 11 November 1942. The prototype force-landed on 1 January 1943, when the port landing gear failed to lock down due to combined hydraulic and electrical system failures.[1] The XP-49 next flew 16 February 1943, after repairs were made. Preliminary flight data showed performance was not sufficiently better than the production P-38, especially given the questionable future of the XI-1430 engine, to warrant disruption of the production line to introduce the new model aircraft.[citation needed] Consideration of quantity production was therefore abandoned.

The aircraft was flown to Wright Field, and after various problems, further work on the XP-49 was halted, and Lockheed focused their energies on improving the P-38 instead.

Specifications (XP-49)

General characteristics

  • Crew: One
  • Length: 40 ft 1 in (12.2 m)
  • Wingspan: 52 ft 0 in (15.8 m)
  • Height: 9 ft 10 in (3.0 m)
  • Wing area: 327.5 sq ft (30 m2)
  • Empty weight: 15,410 lb (6,990 kg)
  • Gross weight: 18,750 lb (8,505 kg)
  • Powerplant: 2 × Continental XI-1430-1 inverted V-12s, 1,600 hp (1,193 kW) each


  • Maximum speed: 406 mph (653 km/h, 353 kn) 15,000 ft (4,570 m)
  • Range: 679 mi (1,093 km, 590 nmi)
  • Rate of climb: 3,300 ft/min (16.8 m/s)


  • 2 × 20 mm (.79 in) cannons
  • 4 × 0.5 in (12.7 mm) machine guns

See also

Related development

Aircraft of comparable role, configuration, and era

Related lists



  1. ^ "January 1943 USAAF Stateside Accident Reports".


  • Green, William. War Planes of the Second World War, Volume Four: Fighters. London: MacDonald & Co. (Publishers) Ltd., 1961 (Sixth impression 1969). ISBN 0-356-01448-7.
  • Green, William and Swanborough, Gordon. WW2 Aircraft Fact Files: US Army Air Force Fighters, Part 2. London: Macdonald and Jane's Publishers Ltd., 1978. ISBN 0-354-01072-7.

External links

Media related to Lockheed XP-49 at Wikimedia Commons

This page was last edited on 18 September 2021, at 11:00
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.