Variants XP-53Curtiss Model 88; derivative of XP-46 to Request for Data R40-C specifications. Laminar flow wing and Continental XIV-1430-3 engine. Contracted for 1 October 1940; cancelled in favour of XP-60 in November 1941. One static test airframe built.[6]XP-60Curtiss Model 90; Rolls-Royce Merlin engine, armament 8 .50-cal machine guns. One built, first flight 18 September 1941; modified to XP-60D.[7]XP-60ACurtiss Model 95A; Allison V-1710-75 engine with B-14 turbosupercharger; armament: six .50-cal MG. One built.[7]P-60APlanned production version of XP-60; 1900 ordered, all cancelled.[7]YP-60A-1Pre-production version of P-60A-1 with single prop. Twenty-six ordered; two built; one rebuilt as YP-60E.[8]P-60A-1Planned production version of XP-60C with Pratt & Whitney R-2800-18 engine and contraprop; armament: four .50-cal MG. 500 ordered; cancelled before any built.[9]XP-60BCurtiss Model 95B; V-1710-75 engine with SU-504-2 turbosupercharger; armament: six .50-cal MG. One built, modified to XP-60EXP-60CCurtiss Model 95C; planned for Chrysler XIV-2220 engine, built with R-2800-53 and contraprop; armament: six .50-cal MG. One built.[10] Rebuilt as XP-60E; original XP-60E rebuilt as XP-60C. ]XP-60DRebuilt XP-60. Curtiss Model 90B; Packard V-1650-3 engine; crashed 6 May 1943. ]XP-60ERebuilt XP-60B. Curtiss Model 95D; R-2800-10 engine; crashed January 1944. XP-60C reconfigured to XP-60E status.[8]YP-60EModified YP-60A-1 with bubble canopy. First flight 15 July 1944; cancelled 22 December 1944.[2]XP-60FPlanned modification of YP-60A-1 with different model of R-2800; cancelled before conversion.Specifications (XP-60C]
General characteristics
Crew: 1
Length: 33.92 ft (10.34 m)
Wingspan: 41.33 ft (12.60 m)
Height: 12.33 ft (3.76 m)
Wing area: 275 ft² (25.6 m²)
Empty weight: 8,698 lb (3,945 kg)
Loaded weight: 10,785 lb (4,892 kg)
Powerplant: 1 × Pratt & Whitney R-2800-53 radial engine, 2,000 hp (1,492 kW)
Performance
Maximum speed: 414 mph (360 kn, 666 km/h)
Service ceiling: 37,900 ft (11,600 m)
Rate of climb: 3,890 ft/min (19.8 m/s)
Wing loading: 39.2 lb/ft² (191 kg/m²)
Power/mass: 0.19 hp/lb (300 W/kg)
