Wright R-1820-45 Cyclone

Wright R-1820-45 Cyclone aircraft engine at the New England Air Museum


Type:   9-cylinder, single-row, air-cooled, radial, piston
Displacement:   1,820 cu. in.
Weight:   1,175 lbs.
Power Output:   930 hp @ 2,200 rpm
Year:   1936
NEAM Id:   31
Location:   Civil Hangar

Gift of Edmund L. Robinson

Introduced in 1930, the R-1820 went through a 25-year production run that saw its power output range from 700 hp to 1,500 hp depending on the model and configuration. They were produced well into the 1950s and were built under license by companies that included Studsbaker, Lycoming and Pratt & Whitney. It was also built in the Soviet Union as the Shvetsov M-25 and in Spain as the Hispano-Suiza 9V. It is one of the most important engines in aviation and saw wide service in both civil and military aircraft. A variant was even used in the M4A6 Sherman tank.

Applications of the R-1820 included:

  • Boeing B-17 Flying Fortress
  • Boeing 307 Stratoliner
  • Brewster F2A Buffalo
  • Curtiss SBC-4 Helldiver
  • Curtiss P-36 Mohawk
  • Curtiss SC Seahawk
  • Douglas B-18 Bolo
  • Douglas DC-2
  • Douglas DC-3 & Super DC-3
  • Douglas SBD Dauntless
  • Grumman / Eastern FM-2 Wildcat
  • Grumman TF-1 / C-1 Trader
  • Grumman E-1 Tracer
  • Grumman HU-16 Albatross
  • Grumman J2F Duck
  • Grumman S-2 Tracker
  • Lockheed 14 Super Electra
  • Lockheed 18 Lodestar
  • Lockheed AT-18 Hudson
  • Martin B-10
  • North American T-28 Trojan
  • Piasecki H-21
  • Polikarpov I-16
  • Sikorsky S-58/LH-34/H-34 Seabat/Choctaw
  • Lockheed AT-18 Hudson

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