Deperdussin TT
The Deperdussin TT was a French monoplane built by Société Pour les Appareils Deperdussin, later to become S.P.A.D. Introduced in 1912, the type was one widely used by the French Air Force (then Aviation Militaire) before the First World War. In February 1914, an experiment was made to install a machine gun on the aircraft, but this did not see service.