Lockheed XP-49

XP-49
	300px
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

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)

General characteristics

Crew: One
Length: 40 ft 1 in (12.2 m)
Wingspan: 52 ft (15.8 m)
Height: 9 ft 10 in (3.0 m)
Wing area: 327.5 ft² (30 m²)
Empty weight: 15,410 lb (6990 kg)
Loaded weight: 18,750 lb (8505 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) 15,000 ft (4,570 m)
Range: 679 mi (1,093 km)
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

References

Citations

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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 Lua error in package.lua at line 80: module 'strict' not found. at Wikimedia Commons

↑ http://www.aviationarchaeology.com/src/AARmonthly/Jan1943S.htm

[1] ttp://www.aviationarchaeology.com/src/AARmonthly/Jan1943S.htm

[1]

v t e Lockheed and Lockheed Martin aircraft
Airliners and civil transports	Vega Model 8 Sirius Altair Model 9 Orion Model 10 Electra Model 12 Electra Junior Model 14 Super Electra Model 18 Lodestar Constellation L-049 L-649 L-749 L-1049 Super Constellation L-1249 Super Constellation L-1649 Starliner Saturn L-188 Electra L-402 JetStar L-100 Hercules L-1011 TriStar
Military transports	C-69 Constellation C-121 Constellation C-130 Hercules C-130J Super Hercules HC-130 KC-130 LC-130 MC-130 C-141 Starlifter C-5 Galaxy R6V Constitution Tristar (RAF)
Attack and bombers	YP-24 Hudson XB-30 Ventura AC-130 A-4AR Fightinghawk F-117 Nighthawk Have Blue FB-22
Drones/UAVs	AQM-60 Kingfisher D-21 Desert Hawk Desert Hawk III MQM-105 Aquila Polecat RQ-3 Darkstar RQ-170 Sentinel DC-130
EW and reconnaissance	YO-3 EC-121 Warning Star EC-130 EC-130H Compass Call WC-130 EP-3 U-2 TR-X A-12 SR-71 Blackbird
Fighters	XFM-2 YP-24 P-38 Lightning XP-49 XP-58 Chain Lightning P-80 Shooting Star XF-90 F-94 Starfire F-104 Starfighter variants YF-12 F-16 Fighting Falcon F-22 Raptor YF-22 F-35 Lightning II
Helicopters	CL-475 XH-51 AH-56 Cheyenne VH-71 Kestrel
Maritime patrol	P-2 Neptune P-3 Orion P-7 S-3 Viking CP-140 Aurora
Trainers	T-33 T2V SeaStar
Experimental	NF-104A Senior Peg Senior Prom XC-35 XF-104 XV-4 Hummingbird X-7 X-17 X-26B Frigate CL-1200 Lancer X-33 X-35 X-44 X-55 X-56 XFV
Other	Air Express Big Dipper Model 44 Excalibur Explorer Little Dipper

v t e USAAS/USAAC/USAAF/USAF fighter designations 1924–1962
Pursuit (pre-1948) Fighter (post-1948)	P-1 P-2 P-3 XP-4 P-5 P-6 XP-7 XP-8 XP-9 XP-10 P-11 P-12 XP-13 XP-14 XP-15 P-16 P-17 YP-18 YP-19 YP-20 P-21 XP-22 P-23 YP-24 P-25 P-26 P-27 P-28 P-29 P-30 XP-31 P-32 P-33 XP-34 P-35 P-36 P-37 P-38 P-39 P-40 XP-41 P-42 P-43 P-44 P-45 XP-46 P-47 XP-48 XP-49 XP-50 P-51 XP-52 P-53 XP-54 XP-55 XP-56 XP-57 XP-58 P-59 P-60 P-61/C XP-62 P-63 P-64 P-65 P-66 XP-67 XP-68 P-69 P-70 XP-71 XP-72 P-73 P-74¹ P-75 XP-76 XP-77 P-78 XP-79 P-80 XP-81 P-82 XP-83 P-84 XP-85 P-86/D XP-87 P-88 P-89 XF-90 XF-91 XF-92 YF-93 F-94 F-95 F-96 F-97 F-98 F-99 F-100 F-101 F-102 XF-103 F-104 F-105 F-106 F-107 XF-108 XF-109 F-110 F-111/B
Pursuit, Biplace	PB-1 PB-2 PB-3
Fighter, Multiplace	FM-1 FM-2
¹ Not assigned See also: F-24 • F-117 • P-400 • post-1962 sequence

Lockheed XP-49

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History

Specifications (XP-49)

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References

Citations

Bibliography

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