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                                       Wright cyclone r -1820 engine

Picture
The Curtiss-Wright R 1820 Cyclone was a nine cylinder single row supercharged, air cooled radial piston engine that was produced from 1921 until the late 1950s by Curtiss-Wright, and under license by Studebaker, Lycoming and Pratt and Whitney in the US, as well as the M25 in the USSR, and the 9V by Hispano Suiza in Spain. 

The R-1820 engines powered aircraft such as the Boeing B17, Boeing 307 Stratoliner, Curtis P-36 and the Douglas range of DC-2, DC-3. DC-5 and Dauntless.

TECHNICAL DATA
Type                                        Nine cylinder single row supercharged, air cooled radial piston engine
Length                                    47.8in (174mm)
Diameter                                54.3in (1,378mm)
Bore and Stroke                     Bore 6.125in (156mm)    and     Stroke 6.875in (175mm)
Displacement                        1,823 cu in (20.88L)
Dry weight                             1,184lbs (537kg)
Valve system                          One inlet and one sodium cooled exhaust valve per cylinder
Supercharger                         Single speed General Electric centrifugal 
Fuel system                            Stromberg downdraft carburettor
Oil System                              Dry sump, one pressure and one scavenge pump 
Power output                         1,000hp @ 2,200rpm at take off
Specific power                       0.46hp/cu in
Compression ratio                 6.45/1
Power to weight ratio             0.84hp/lb
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  • Home
  • ABOUT
    • News
    • History
  • Community Engagement
    • Legends of The Skies
  • Birthdays & Functions
  • Our Collection
    • CATEGORIES >
      • ENGINES
      • COMMONWEALTH AIRCRAFT CORPORATION
      • D.A.P / G.A.F.
      • R.A.A.F. / R.A.N. / ARMY
      • COMMERCIAL AIRCRAFT
      • KIT AIRCRAFT
      • OTHER AIRCRAFT
      • GLIDERS
  • membership
  • ONLINE SHOP
  • Support the Museum
    • Donations
    • EMPLOYEE GIVING
    • Our Supporters
  • Getting There
  • Contact