Lockheed XP-49
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Lockheed XP-49
Le Lockheed XP-49 vu sur Wikipedia de langue anglaise
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The Lockheed XP-49 (company Model 522) was an advancement on the [Vous devez être inscrit et connecté pour voir ce lien] for a fighter in response to [Vous devez être inscrit et connecté pour voir ce lien] proposal 39-775.
Intended to use the new twenty-four cylinder [Vous devez être inscrit et connecté pour voir ce lien] 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 [Vous devez être inscrit et connecté pour voir ce lien].
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The Lockheed XP-49 (company Model 522) was an advancement on the [Vous devez être inscrit et connecté pour voir ce lien] for a fighter in response to [Vous devez être inscrit et connecté pour voir ce lien] proposal 39-775.
Intended to use the new twenty-four cylinder [Vous devez être inscrit et connecté pour voir ce lien] 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 [Vous devez être inscrit et connecté pour voir ce lien].
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History
Ordered in October 1939 and approved on January 8, 1940, the X-1800-powered XP-49 would feature a pressurized cockpit and armament of two 20 mm (.79 in) cannon and four 0.5 in (12.7 mm) machine guns.
However, after two months into the contract a decision was made to substitute the [Vous devez être inscrit et connecté pour voir ce lien] (or IV-1430) twelve cylinder liquid-cooled inverted vee engines for the X-1800.
The XP-49 first flew on 11 November 1942. A crash landing in early January 1943 occurred when the port landing gear failed to lock down due to a combined hydraulic and electric failure, and the XP-49 flew again on 16 February 1943 after repairs were made.
Ordered in October 1939 and approved on January 8, 1940, the X-1800-powered XP-49 would feature a pressurized cockpit and armament of two 20 mm (.79 in) cannon and four 0.5 in (12.7 mm) machine guns.
However, after two months into the contract a decision was made to substitute the [Vous devez être inscrit et connecté pour voir ce lien] (or IV-1430) twelve cylinder liquid-cooled inverted vee engines for the X-1800.
The XP-49 first flew on 11 November 1942. A crash landing in early January 1943 occurred when the port landing gear failed to lock down due to a combined hydraulic and electric failure, and the XP-49 flew again on 16 February 1943 after repairs were made.
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- Messages : 955
Re: Lockheed XP-49
The preliminary flight data showed that performance of the XP-49 was not sufficiently better than the production P-38, and with a questionable future for the XI-1430 engine, to warrant disruption of the production line to introduce the new model aircraft.
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Re: Lockheed XP-49
Specifications (XP-49)
General characteristics
General characteristics
- Crew: One
- Length: 40 ft 1 in (12.2 m)
- [Vous devez être inscrit et connecté pour voir ce lien]: 52 ft (15.8 m)
- Height: 9 ft 10 in (3.0 m)
- Wing area: 327.5 ft² (30 m²)
- [Vous devez être inscrit et connecté pour voir ce lien]: 15,410 lb (6990 kg)
- Loaded weight: 18,750 lb (8505 kg)
- Powerplant: 2× [Vous devez être inscrit et connecté pour voir ce lien], 1,600 hp (1,193 kW) each
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- Messages : 955
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Armament
- 2 × 20 mm (.79 in) cannons
- 4 × 0.5 in (12.7 mm) machine guns
SWINGER- CLUB
- Messages : 955
Re: Lockheed XP-49
Bibliography
- Green, William. War Planes of the Second World War, Volume Four: Fighters. London: MacDonald & Co. (Publishers) Ltd., 1961 (Sixth impression 1969). [Vous devez être inscrit et connecté pour voir ce lien].
- Green, William and Swanborough, Gordon. WW2 Aircraft Fact Files: US Army Air Force Fighters, Part 2. London: Macdonald and Jane's Publishers Ltd., 1978. [Vous devez être inscrit et connecté pour voir ce lien].
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