The prototype S-16 made its first flight on February 6, 1915. The S-16 was the first Sikorsky fighter to be equipped with a synchronized machine gun firing through the propeller. However, the synchronization left much to be desired. The S-16, with slight modifications from batch to batch survived the Revolution and were operational with the Red Air Force through the Civil War.

Type: Fighter Scout
Year: 1915
Engine: 1 x "Gnome" 80 hrs.pwr.
Wingspan: 8.00 m
Length: 5.90 m
Weight: 407 kg/675 kg
Max. speed: 120 km/h
Ceiling : 3500 m
Crew: 1
Armament: 1 machinegun