Wright R-790 Whirlwind

R-790 Whirlwind
Wright R-790 (J-5 Whirlwind) at National Air and Space Museum
TypeAir-cooled 9-cylinder radial piston engine
National originUnited States
ManufacturerWright Aeronautical Corporation
Škoda Works (Czechoslovakia)
Avia (Poland)
First run1923
Major applications

The Wright R-790 Whirlwind was a series of nine-cylinder air-cooled radial aircraft engines built by Wright Aeronautical Corporation, with a total displacement of about 790 cubic inches (12.9 L) and around 200 horsepower (150 kW). These engines were the earliest members of the Wright Whirlwind engine family.