Vought OS2U Kingfisher

OS2U Kingfisher
Role	Observation floatplane Type of aircraft
Manufacturer	Vought
First flight	1938
Retired	1959 (Cuba)
Primary users	United States Navy Royal Navy Royal Australian Air Force Soviet Navy
Number built	1,519

The Vought OS2U Kingfisher is an American catapult-launched observation floatplane. It was a compact mid-wing monoplane, with a large central float and small stabilizing floats. Performance was modest because of its low-powered engine. The OS2U could also operate on fixed, wheeled, taildragger landing gear.

The OS2U was the main shipboard observation seaplane used by the United States Navy during World War II, and 1,519 of the aircraft were built.^{[citation needed]} It served on battleships and cruisers of the U.S. Navy, with the United States Marine Corps in Marine Scouting Squadron Three (VMS-3), with the United States Coast Guard at coastal air stations; at sea with the Fleet Air Arm of the Royal Navy; with the Soviet Navy; and with the Royal Australian Air Force.

The Naval Aircraft Factory OS2N was the designation of the OS2U-3 aircraft built by the Naval Aircraft Factory in Philadelphia, Pennsylvania. The OS2U first flew on 1 March 1938.^{[citation needed]}