The Vought O2U Corsair was a 1920s biplane scout and observation aircraft.
Made by Vought Corporation, the O2U was ordered by the United States Navy in 1927.
Powered by a 400 hp (298 kW) Pratt & Whitney R-1340 Wasp engine, it incorporated a steel-tube fuselage structure and a wood wing structure with fabric covering.
Many were seaplanes or amphibians.
Variants
XO-28
Single example taken on charge by the U.S. Army Air Corps for evaluation with serial 29-323, Wright Field Project Number P-547, powered by a 450 h.p R-1340-C engine.
Destroyed in hangar fire at Wright Field, Ohio, 18 March 1930.
O2U-1
two prototypes followed by 130 production aircraft for USN with interchangeable wheel/float landing gear and 28 aircraft for other customers. 450 hp (336 kW) Pratt & Whitney R-1340-88 Wasp engine
O2U-2
37 built, increased span and larger rudder
O2U-3
110 built (30 for export), revised wing rigging, redesigned tail surfaces and Pratt & Whitney R-1340-C engine
O2U-4
43 built (1 for export. Also seven civilian O2U were built), similar to O2U-3 but with equipment changes
O3U-1
87 built as observation seaplanes incorporating Grumman amphibious float