On 18 June 1928, the USAAC placed a contract with Curtiss for one prototype of the XP-10 single-seat fighter powered by a 600hp V-1570-17 Conqueror engine. Of mixed construction with fabric-covered steel-tube fuselage and plywood-covered wooden wings, the XP-10 placed emphasis on aerodynamic cleanliness and utilised surface evaporation wing radiators and a gulled upper wing. Delivered in August 1928, the XP-10 was tested until October 1930, but continuous problems with the cooling system prevented further development.
Engine: 600hp V-1570-17 Conqueror Take-off weight: 1803 kg / 3975 lb Empty weight: 1379 kg / 3040 lb Wingspan: 10.06 m / 33 ft 0 in Length: 7.47 m / 24 ft 6 in Height: 2.64 m / 8 ft 8 in Max. speed: 307 km/h / 191 mph Range: 742 km / 461 miles