Pratt & Whitney R-4360 Wasp Major radials fitted to a Boeing Stratocruiser, Stock Photo, Picture And Rights Managed Image. Pic. MEV-10841988 | agefotostock
File:Pratt & Whitney Twin Wasp R-1830 S1C3G Keski-Suomen ilmailumuseo 1.JPG - Wikimedia Commons
File:Pratt & Whitney Twin Wasp R-1830 S1C3G Keski-Suomen ilmailumuseo 2.JPG - Wikimedia Commons
Pratt & Whitney R-4360-35 Wasp Major, 4-Row, Radial 28 Engine | National Air and Space Museum