avia.wikisort.org - AeroplaneThe 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.
1942 fighter aircraft prototype by Lockheed
XP-49 |
|
Role |
Fighter Type of aircraft |
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 |
History
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
Performance
- 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)
Armament
- 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
- List of aircraft of World War II
References
Citations
Bibliography
- 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
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Transports | Constellation family | |
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Hercules family | |
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Model 10 Electra family | |
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L-188 Electra family | |
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Fighter-bombers | Lightning family | |
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Raptor family | |
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Reconnaissance | Blackbird family | |
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Trainers | |
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Helicopters | |
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Experimental | |
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Light aircraft | |
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Missiles |
- Agena
- High Virgo
- Perseus
- Ping-Pong
- Polaris
- Poseidon
- Trident I
- Trident II
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Model numbers | |
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1 Not assigned |
USAAS/USAAC/USAAF/USAF fighter designations 1924–1962, and Tri-Service post-1962 systems |
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1924 sequences (1924–1962) | Pursuit (1924–1948) | |
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Fighter (1948–1962) | |
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Fighter, Multiplace | |
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Tri-service sequence (1962–present) | Main sequence | |
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Covert designations |
- YF-110
- YF-113 (I)
- YF-113 (II)
- YF-113 (III)
- YF-114
- YF-117
- YF-118
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Related designations | |
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1 Not assigned • 2 Unofficial • 3 Assigned to multiple types See also: "F-19" • 1919-1924 sequence |
На других языках
[de] Lockheed XP-49
Die Lockheed XP-49 (Lockheed Model 522) war ein US-amerikanischer Jagdflugzeug-Prototyp. Er wurde während des Zweiten Weltkrieges auf Basis der Lockheed P-38 entwickelt.
- [en] Lockheed XP-49
[fr] Lockheed XP-49
Le Lockheed XP-49 (Model 522 du constructeur) est une version améliorée du P-38 Lightning en réponse à un appel d'offres 39-775 de l'United States Army Air Corps pour un avion de chasse. Destiné à être équipé du nouveau moteur à 24 cylindres Pratt & Whitney X-1800, ce projet, qui doit être globalement similaire au P-38, se voit assigner la désignation XP-49, tandis que le Model G-46 concurrent de Grumman est classé à la deuxième place et désigné XP-50.
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