The reputation of the Supermarine company was built on their ability to design and produce effective and reliable marine and amphibious aircraft for civilian and military use. The Walrus was a perfect example of their expertise and underlined the strength of the aircraft by performing a loop at the 1933 Hendon Air Pageant, to the astonishment of the massed ranks of spectators.
- Scheme 1: HMS Birmingham 4th Cruiser Squadron 1938-40
- Scheme 2: 53.S.16, Flottille 53S, Aeronavale, Hourtin, 1945-48
- Scheme 3: N20 Irish Air Corps 1939-40