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Pratt & Whitney R-985-AN Wasp Junior


Courtesy of Pratt & Whitney Aircraft


The Wasp Junior is one of the most successful reciprocating engines ever built. Pratt & Whitney introduced it as a complement to the Wasp and Hornet families of engines in 1930. More than 39,000 of all versions were produced until 1953 and powered more than 60 types of aircraft including:

  • Beechcraft Model 18, Staggerwing
  • Boeing-Sterman Model 75 (aftermarket conversions)
  • de Havilland DHC-2 Beaver
  • Grumman G-21 Goose
  • Lockheed Model 10A Electra, Model 12A Electra Junior
  • North American BT-14
  • Sikorsky H-5 helicopter, S-39 Jungle Gym
  • Vought OS2U Kingfisher
  • Vultee BT-13 Valiant

This engine is located in the Military Hangar near the Hughes Seasprite display.

If you have any information, comments or recollections of the R-985 Wasp Junior, please contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it. .