Euler Hydro-Triplane
 
Euler-Hydro-01
 
A pre-war (1913) model was the Euler Hydro-Triplane a pusher configuration amphibious triplane flying boat featured in the French magazine L'AĆ©rophile. It was propelled by a 70 hp engine Gnome engine, and was made famous also by the Magazine Flight as the best of its kind, this time powered with a 100 hp (75 kW), nine cylinder Gnome Delta rotary engine. It was remarkably the first true amphibian, with the mainwheels placed on the upper and lower pairs of struts. It was never used by the Military.