GM tried to build a long-range fighter, that used parts of the P-40 (wings), A-24 (army version of the SBD Dauntless dive-bomber - tail) and F4U (gear). This "Frankenstein" aircraft was powered by the Allison V-3420, a 24-cylinder engine that was created by coupling two V-1710 engines. This was installed behind the cockpit, and drove contra-rotating propellers in the nose by an extension shaft. The P-75 was a qualified success, after a lot of redesign. Performance was disappointing, however, and better escort aircraft were already in service. General characteristics XP-75 Primary function Fighter Power plant One Allison V-3420-23 engine Thrust 3,916 HP 2,920 kW Wingspan 49.3 ft 15.04 m Length 40.4 ft 12.32 m Height 15.5 ft 4.72 m Wingarea 347 sq ft 32.24 sq m Weight empty 11,506 lb 5,219 kg max. 18,226 lb 8,267 kg Max. speed 433 mph 697 km/h Ceiling 36,420 ft 11,100 m Max. range 2,050 miles 3,300 km Armament 10x 12.7mm machine gun, 2x 500 lb bombs Crew One First flight November 17, 1943 Number built 14

johnbr, Apr 16, 2011
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