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R-1690 HORNET ENGINE

R-1690 Hornet Engine

The Hornet was an essential factor in the growth of the commercial air transport industry.

By the time production Wasp engines were being delivered, design of a second, more powerful air-cooled engine was well under way. Called the Hornet, it was initially rated at 525 horsepower, with later models developing as much as 875 horsepower.

Specs

  • Displacement (R-1690):
    1,690 cubic inches
  • Displacement (R-1860):
    1,860 cubic inches
  • Revolutions per minute: 1,900-2,300
  • Weight: 840-1,070 pounds
  • First run: 1926
  • First flight: 1927
  • Production years: 1926-1942
  • Engines produced: 2,944

Airplanes Powered

  • American Airplane & Engine 100A
  • Atlantic XLB-2
  • Bellanca C-27
  • Boeing YB-9
  • Boeing Model 40-B
  • Boeing Model 80-A1
  • Boeing Model 95
  • Boeing Model 220, 221
  • Boeing Y1C-18
  • Consolidated Model 17, 20, 20A
  • Consolidated Model 16
  • Curtiss YA-10
  • Douglas O-38
  • Faucett F-19
  • Focke-Wulf FW-200
  • General GA-43
  • General C-14B
  • Hamilton TG-1
  • Junkers JU-52
  • Junkers JU-86
  • Keystone C2H
  • Keystone B-4A
  • Keystone LB-3A
  • Keystone LB-7,8,10A,12,13,14
  • Lockheed C-56A, C, D
  • Lockheed C-59
  • Lockheed XR40-1
  • Lockheed Model 14H2
  • Martin B-12
  • Martin YB-13
  • Martin P3M-2
  • Martin T4M-1
  • Martin Model 74
  • N.A.F. T4N-1
  • Sikorsky OA-8
  • Sikorsky Y10A-8
  • Sikorsky S-40A
  • Sikorsky S-41B
  • Sikorsky S-42
  • Sikorsky S-43 (JRS-1)
  • Thomas Morse YO-20
  • Vought V-80P
  • Vought V-92S
  • Vought SU-1, 2, 3, 4
  • Vought O3U-2