USAAS markings The Standard E-1 was an early American Army fighter aircraft, tested in 1917.

[1] It was the only pursuit aircraft manufactured by the United States during World War I.

[2] It arrived late in World War I, and as a result saw more use in the months following the Armistice than those preceding it.

[3] 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 rotary engine.

Data from The American Fighter[8]General characteristics Performance