Vought FU-1 / FU-2
In January 1927 the Chance Vought company produced a single-seat fighter version of its mass-produced VO-1 shipboard observation aircraft. A two-bay bi-plane, the VO-1 was not entirely suitable as the basis for a competitive fighter, and with only the same engine as before, the 200-hp Wright R-1790 Whirlwind, performance was inadequate. Nevertheless, 20 FU-1 fighters were built for the US Navy, most of them being central-float seaplanes (at least two were fitted with wheels for airfield use).
Despite being pleasant to fly, the FU was really only suitable for training. In their first year, ending in the winter 1928-29, the FU-1s equipped fighter squadron VF-2B aboard the carrier Langley. Thereafter the 18 that sur-vived were converted into FU-2 trainers, still with a fixed Marlin machine-gun. They remained in use as trainers and general purpose aircraft into the 1930s.
Span: 10.46 m (34 ft 4 in)
Length: 7.44 m (24 ft 5 in)
Gross weight: 1093 kg (2400 lb)
Maximum speed: 236 km/h (147 mph)