The Standard E-1 was an early American Army fighter aircraft tested in 1917. It was the only pursuit aircraft manufactured by the United States during WWI. It arrived late in World War I and as a result saw more use in the months following the Armistice than those preceding it. Built by the Standard Aircraft Corporation the E-1 was an open-cockpit single-place tractor biplane powered by an 80 hp (60 kW) Le Rhône or 100 hp (75 kW) Gnome or rotary engine.
Made by Standard Aircraft Corporation.