Schneider Cup 1925

Replacing the flying boat style racers, this is the first of the experimental Supermarine Monoplanes with two floats. 
There was no exterior bracing, a steel tube structure connected the engine, one-piece wing, floats and a mount for the rear portion of the fuselage. The rest of the plane including the skin, was made of wood. The engine was a 700 hp Napier Lion. Although the aircraft had set a British seaplane speed record of almost 227 mph before the race, it was wrecked during pre race trials- wing flutter was suspected- and never took part.