| La Coupe d'Aviation Maritime Jacques Schneider | |
|---|---|
 The Schneider Trophy, on display at the Science Museum, London | |
| Awarded for | Fastest seaplane over a fixed course |
| Sponsored by | Jacques Schneider |
| Country | International |
| First awarded | 1913 |
| Last awarded | 1931 |
The Coupe d'Aviation Maritime Jacques Schneider, also known as the Schneider Trophy, Schneider Prize or (incorrectly) the Schneider Cup is a trophy that was awarded first annually, and later biennially, to the winner of a race for seaplanes and flying boats. In 1931 Britain met the conditions to retain the Trophy permanently; it was held at the Science Museum in South Kensington, London.
Announced in 1912 by Jacques Schneider, a French financier, balloonist and aircraft enthusiast, the competition offered a prize of approximately £1,000. The race was held twelve times between 1913 and 1931, the year when it was finally won permanently by the British. It was intended to encourage technical advances in civil aviation but became a contest for pure speed with laps over a (usually) triangular course, initially 280 km (170 mi) and later extended to 350 km (220 mi). The contests were staged as time trials, with aircraft setting off individually at set intervals, usually 15 minutes apart. The contests were very popular, and some of them attracted crowds of over 200,000 spectators.
The race was significant in advancing aeroplane design, particularly in the fields of aerodynamics and engine design, and showed its results in the best fighters of World War II. The streamlined shape and the low drag, liquid-cooled engine pioneered by Schneider Trophy designs are obvious in the British Supermarine Spitfire, the American North American P-51 Mustang, and the Italian Macchi C.202 Folgore.
An earlier 1910 trophy for land planes presented by Jacques Schneider, in France, the Grande Semaine d'Aviation de Tours, in the possession of the RAF College Cranwell, is also known as the Schneider Cup.