Supermarine Seagull (1921)

Seagull
Two Australian Seagull IIIs being hoisted aboard the carrier HMAS Albatross by the ship's cranes, 1926-1932.
Role	Reconnaissance flying boat Type of aircraft
Manufacturer	Supermarine
Designer	R.J. Mitchell
First flight	May 1921
Primary users	Fleet Air Arm Royal Australian Air Force
Number built	34
Developed from	Supermarine Seal II

The Supermarine Seagull was a flying boat produced by the British aircraft manufacturer Supermarine. It was developed by Supermarine's chief designer R.J. Mitchell from the experimental Supermarine Seal II.

Development of the Seagull started during 1920. In June 1921 it was evaluated for military applications but was rejected, and so Supermarine developed the aircraft as a private venture. During February 1922, an initial order for two aircraft was placed by the Air Ministry; subsequent production of the Seagull is believed to have assisted Supermarine to survive during a period when the aircraft industry struggled to attract customers.

The Seagull was used by the British Fleet Air Arm for gunnery spotting and reconnaissance duties. It was operated by the Royal Australian Air Force for similar purposes. During the early 1930s, when the type was being replaced by the more successful Supermarine Walrus, a number of Seagulls were re-used for civilian purposes.