The Curtiss F6C Hawk was a late 1920s United States naval biplane fighter aircraft. It was part of the long line of Curtiss Hawk airplanes built by the Curtiss Aeroplane and Motor Company for the American military.
Originally designed for land-based use, the Model 34C was virtually identical to the P-1 Hawk in United States Army Air Corps service. The United States Navy ordered 9, but as the sixth example was built it was strengthened for carrierborne operations and redesignated as the Model 34D. Flown from the carriers Langley and Saratoga from 1927 to 1930, most of the later variants passed to Marine fighter-bomber units, while a few were flown for a time as twin-float seaplanes.
- - Five Model 34C, F6C-1 & XF6C-4 to the US Marine Corps VF-9M squadron
- - Four Model 34D, F6C-2 to the US Navy's VF-2 squadron aboard the aircraft carrier USS Langley (CV-1)
- - Thirty-Five Model 34E, F6C-3 to the US Navy's VF-5S squadron, later renamed VF-1B on the aircraft carrier USS Lexington (CV-2) & to the USMC VF-8M Squadron
- - Thirty-One Model 34H, F6C-4 to the US Navy VF-2B squadron on the aircraft carrier USS Langley (CV-1)
- F6C-1 Model 34C virtually identical to the P-1 series
- F6C-2 Model 34D strengthened for carrierborne operations and fitted with arrester hooks
- F6C-3 Model 34E modified version of the F6C-2
- XF6C-4 Model 34H prototype F6C-1 with a Pratt & Whitney R-1340 Wasp radial engine
- F6C-4 Model 34H production version of the XF6C-4
- XF6C-5 Model 34H prototype F6C-1 with a Pratt & Whitney R-1690 Hornet radial of 525 HP (691 kW)
- F6C-6 Model 34E modified for racing, with its radiator located inside the fuselage
- XF6C-6 Model 34E the F6C-6 which had won the 1930 Curtiss Marine Trophy was converted to parasol-wing monoplane configuration and given wing surface radiators; after achieving the fastest lap in the 1930 Thompson Trophy race the XF6C-C crashed when its pilot was overcome by fumes
- XF6C-7 Model 34H testbed for an experimental 350 HP (261 kW) Ranger SGV-770C-1 air-cooled inverted Vee engine
- The complete Encyclopedia of World Aircraft cover Editors: Paul Eden & Soph Moeng, Amber Books Ltd. Bradley's Close, 74-77 White Lion Street, London, NI 9PF, 2002, 1152 pp.