Sikorsky S-26

Two redesigned, smaller bombers powered by four Sunbeam engines were produced in the Sikorsky S-26 Type D1 and D2 Il&apos;ya Muromets. The D-1 model was scrapped in 1916 but the D-2 was accepted and sent to the front in 1916, but the type was dropped in favor of concentrating on the Type Gs.

The D bombers used only three crew and used a top-to-bottom glassed-in fuselage reminiscent of many WWII bombers.