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Wright Cyclone series

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Wright Cyclone series
R-1300, R-1820, R-2600 and R-3350
Type Radial engine
National origin United States
Manufacturer Wright Aeronautical

Wright Cyclone was the name given to a family of air-cooled radial piston engines designed by the Wright Aeronautical Corporation and used in numerous American aircraft in the 1930s and 1940s.[1]

Background[edit]

The Wright Aeronautical Corporation was formed in 1919, initially to develop liquid-cooled Hispano-Suiza V8 engines under license. The corporation's first original design, the R1, was also the first successful high-powered radial in the USA. Funded by contracts from the US Navy for new air-cooled radials, Wright started a new design (initially called the P2) in 1924. The resignation of Frederick Rentschler to form the Pratt & Whitney Aircraft Company, along with several key engineering personnel, seriously affected the development of the P2 and it did not go into production.

Cyclone family[edit]

R-1300 Cyclone 7 (1942)[2][3]

  • 1,301 cu in (21.32 L) displacement 7-cylinder single row air cooled radial
  • 6+1⁄8 in × 6+5⁄16 in (156 mm × 160 mm) bore x stroke
  • Power output 800 hp (600 kW)

R-1750 Cyclone (1926)[4][5][6]

  • 1,750 cu in (28.7 L) displacement 9-cylinder single row air cooled radial
  • 6 in × 6+7⁄8 in (150 mm × 170 mm) bore x stroke
  • Power output 500–525 hp (373–391 kW)

R-1820 Cyclone (1932)[7][8][9]

  • 1,823 cu in (29.87 L) displacement 9-cylinder single row air cooled radial
  • 6+1⁄8 in × 6+7⁄8 in (160 mm × 170 mm) bore x stroke
  • Power output 575–1,525 hp (429–1,137 kW)

R-2600 Cyclone 14 (Twin Cyclone) (1935)[10][11]

  • 2,603 cu in (42.66 L) displacement 14-cylinder two row air cooled radial
  • 6+1⁄8 in × 6+5⁄16 in (156 mm × 160 mm) bore x stroke
  • Power output 1,400–1,900 hp (1,000–1,400 kW)

R-3350 Cyclone 18 (Duplex Cyclone) (1937)[10][12]

  • 3,347 cu in (54.85 L) displacement 18-cylinder two row air cooled radial
  • 6+1⁄8 in × 6+5⁄16 in (156 mm × 160 mm) bore x stroke
  • Power output 1,800–2,800 hp (1,300–2,100 kW)

R-4090 Cyclone 22[13]

  • 4,090 cu in (67.0 L) displacement 22-cylinder two row air cooled radial
  • 6+1⁄8 in × 6+5⁄16 in (156 mm × 160 mm) bore x stroke

See also[edit]

References[edit]

Citations[edit]

  1. ^ Flying Magazine. August 1945. {{cite journal}}: Missing or empty |title= (help)
  2. ^ Gunston 1986, p. 176.
  3. ^ Smith 1986, p. 129.
  4. ^ Gunston 1986, p. 175.
  5. ^ Smith 1986, p. 125.
  6. ^ White 1995, p. 324.
  7. ^ Gunston 1986, pp. 175–176.
  8. ^ Smith 1986, pp. 125–126.
  9. ^ White 1995, pp. 324–331.
  10. ^ a b Gunston 1986, pp. 176–177.
  11. ^ White 1995, pp. 341–346.
  12. ^ White 1995, pp. 356–365.
  13. ^ White 2006, p. 22.

Bibliography[edit]

  • Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough, Northamptonshire: Patrick Stephens Limited. ISBN 0-85059-717-X.
  • Smith, Herschel (1986). Aircraft Piston Engines: From the Manly Balzer to the Continental Tiara (Corrected ed.). Manhattan, Kansas: Sunflower University Press. ISBN 0-07-058472-9.
  • White, Graham (1995). Allied Aircraft Piston Engines of World War II. Warrendale, Pennsylvania: Society of Automotive Engineers, Inc. ISBN 1-56091-655-9.
  • White, Graham (2006). R-4360: Pratt & Whitney's Major Miracle. North Branch, Minnesota: Specialty Press. ISBN 978-1-58007-097-3.
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