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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.
The Hispano-Suiza 14AB, a.k.a. Hispano-Suiza Type 80, was a 14-cylinder twin-row air-cooled radial engine. In 1929 the Hispano-Suiza company bought a license to produce the Wright Whirlwind engine. The technology from that engine was used to produce a number of different radial engines with greater displacements, power, and number of cylinders.
The 35 hp (26 kW) Verner JCV 360 was also part of the product line until about 2013 when the company ended production of its horizontally-opposed engines to concentrate on the producing radial engines, starting with the Verner Scarlett 7H seven cylinder, four stroke radial, aimed at the antique and replica market.
The Soviet Shvetsov OKB-19 design bureau was the sole source of design for all of the Soviet government factory-produced radial engines used in its World War II aircraft, starting with the Shvetsov M-25 (itself based on the American Wright Cyclone 9's design) and going on to design the 41-litre displacement Shvetsov ASh-82 fourteen cylinder ...
The Pratt & Whitney R-985 Wasp Junior is a series of nine-cylinder, air-cooled, radial aircraft engines built by the Pratt & Whitney Aircraft Company from the 1930s to the 1950s. These engines have a displacement of 985 in 3 (16 L); initial versions produced 300 hp (220 kW), while the most widely used versions produce 450 hp (340 kW).
The Whirlwind was a direct descendant of the Lawrance J-1, a nine-cylinder air-cooled radial built by the Lawrance Aero Engine Company for the U.S. Navy. Because the Navy was very enthusiastic about air-cooled radials, but was concerned that Lawrance could not produce enough engines for its needs, it forced Wright to purchase the Lawrance company in 1923 and build the J-1 itself.
The Compact Radial Engines production engine is rated at 27.5 hp (21 kW) at 6250 rpm. Reduction ratios available are 1.84, 2.05, 2.14, 2.24 and 2.34 to 1. [1] [2] [5] The owners manual acknowledges the limitations inherent in the design of the engine, stating: This is not an aeronautics approved engine.
Kinner's chief engineer was Max B. Harlow who later founded the Harlow Aircraft Company. [1] It went bankrupt in 1937, and the aircraft rights were sold to O.W. Timm Aircraft Company. The engine department was rearranged as Kinner Motor Inc in 1938, but collapsed in 1946. Kinner became the West Coast's largest producer of aircraft engines in ...