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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).
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 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).
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 Rotec R3600 is a nine-cylinder radial engine built by Rotec Aerosport Pty Ltd in Australia. Initially released in 2005, it was a followup of the 7-cylinder Rotec R2800 released five years earlier. Both this engine and its smaller cousin have been frequently used as both replacement engines for vintage World War 1 aircraft, and reproduction ...
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.
Data from Jane's All the World's Aircraft 1938 General characteristics Type: 9-cylinder air-cooled radial Bore: 130 mm (5.12 in) Stroke: 140 mm (5.51 in) Displacement: 16.72 L (1,020 cu in) Length: 1,065 mm (41.93 in) Diameter: 1,184 mm (46.61 in) Dry weight: 260 kg (573 lb) with ancillaries, without propeller hub Components Valvetrain: one inlet and one exhaust valve per cylinder, operated by ...
Data from Jane's All the World's Aircraft 1938 General characteristics Type: 9-cylinder single row supercharged radial Bore: 140 mm (5.51 in) Stroke: 150 mm (5.90 in) Displacement: 20.78 L (1,268 cu in) Length: 1.347 m (53.2 in) Diameter: 1.275 m (50.2 in) Dry weight: complete 390 kg (860 lb) Components Valvetrain: one inlet and one exhaust overhead valve per cylinder, operated with rocker ...