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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 Wright R-975 Whirlwind was a series of nine-cylinder air-cooled radial aircraft engines built by the Wright Aeronautical division of Curtiss-Wright.These engines had a displacement of about 975 cu in (15.98 L) and power ratings of 300–450 hp (220–340 kW).
Later that year the US Navy awarded Wright a contract to develop two new air-cooled radial engines. The first, called the P-1, was a 9-cylinder single row design of 1,652 cu in (27.07 L) displacement that was derived from an earlier Lawrence design, it produced 400 hp (300 kW). [2]
The 9 AD followed Salmson practice after the First World War, of being air-cooled and utilising the Canton-Unne epicyclic geared crank-case system. The major attributes of the engine include a bore of 70 mm (2.76 in) and stroke of 86 mm (3.39 in).
The Ivchenko AI-14 is a nine-cylinder, air-cooled, radial piston engine designed in the Soviet Union to power aircraft. A variant known as the M462 was produced under license by Avia . Variants
Data from Aircraft Diesels: Chapter 3 - The Guiberson Diesel General characteristics Type: 9-cylinder air-cooled radial diesel piston engine Bore: 5.125 in (130.18 mm) Stroke: 5.5 in (139.70 mm) Displacement: 1,021 cu in (16.73 L) Length: 38.6 in (980 mm) including starter Diameter: 47.125 in (1,197.0 mm) Dry weight: 653 lb (296 kg) Designer: F. A. Thaheld Components Valvetrain: two pushrod ...
The Shvetsov ASh-62 (Russian: АШ-62, designated M-62 before 1941) is a nine-cylinder, air-cooled, radial aircraft engine produced in the Soviet Union. A version of this engine is produced in Poland as the ASz-62 and the People's Republic of China as the HS-5 .
Development of the nine-cylinder engine was led by Capt. George Thomas Smith-Clarke. The prototype engine, called 9ARS and which weighed 693 lb and developed 450 hp, was run in December 1936. In 1938 Airspeed (1934) Ltd lent their test pilot, George Errington, and their much rebuilt Bristol Bulldog ( K3183 ), to carry out test flights.