Wright Cyclone series

The Wright Aeronautical Corporation was formed in 1919, initially to develop liquid-cooled Hispano-Suiza V8 engines under license. In 1923 the Wright purchased the Lawrance Aero Engine Company, and with the purchase Charles Lawrance came to Wright as the Vice-President. 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 displacement that was derived from an earlier Lawrence design, it produced . The second, the P-2, had the same displacement as the P-1, but was an improved design that produced . Neither engine entered production, with the Navy selecting the superior Pratt & Whitney R-1340 Wasp, so in 1926 work started on the improved design, which became the R-1750 Cyclone. ==Cyclone family==

R-1300 Cyclone 7 (1942) • 7-cylinder single row air cooled radial • Bore x stroke: • Displacement: • Power output: R-1750 Cyclone (1926) • 9-cylinder single row air cooled radial • Bore x stroke: • Displacement: • Power output: R-1820 Cyclone (1932) • 9-cylinder single row air cooled radial • Bore x stroke: • Displacement: • Power output: R-2600 Cyclone 14 (Twin Cyclone) (1935) • 14-cylinder two row air cooled radial • Bore x stroke: • Displacement: • Power output: R-3350 Cyclone 18 (Duplex Cyclone) (1937) • 18-cylinder two row air cooled radial • Bore x stroke: • Displacement: • Power output: R-4090 Cyclone 22 • 22-cylinder two row air cooled radial • Bore x stroke: • Displacement: Note: the designations refer to the engine configurations as follows: "R" = Radial, followed by the approximate displacement in cubic inches. ==See also==