Lockheed XP-49

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XP-49
Lockheed XP-49 061023-F-1234P-002.jpg
Role Fighter
National origin United States
Manufacturer Lockheed
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.

History[edit]

Ordered in October 1939 and approved on January 8, 1940, the XP-49 would 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.

Specifications (XP-49)[edit]

General characteristics

Performance

Armament

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

See also[edit]

Related development

P-38 Lightning

Aircraft of comparable role, configuration and era

Grumman XP-65

Related lists

References[edit]

Citations[edit]

Bibliography[edit]

  • 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[edit]

Media related to Lockheed XP-49 at Wikimedia Commons