Supermarine Swan

The Supermarine Swan was a British commercial biplane flying boat of the 1920s designed by R. J. Mitchell, and the world's first twin-engine amphibian aircraft. A single machine was built by Supermarine at Woolston, Southampton, and it was the precursor of the Supermarine Southampton. Mitchell designed it alongside the Scylla as a replacement for the Royal Air Force's Felixstowe F5 flying boat, to Air Ministry specification 21/22, and it first appeared in his drawings as a Twin Engined Commercial Flying Boat in July 1922. Completed as a wooden reconnaissance flying boat, it first flew on 25 March 1924 and was shown to the Prince of Wales in June 1924. In 1926 it was registered G-EBJY, converted to carry up to ten passengers and loaned to Imperial Airways for a service between England and France. The Air Ministry took it back in March 1927 and it was scrapped the following year.