Pratt & Whitney R-2180-E Twin Wasp E

R-2180-E Twin Wasp E
A Saab Scandia powered by two P&W R-2180 Twin Wasp E engines
Type	Radial engine
National origin	United States
Manufacturer	Pratt & Whitney
First run	1945
Major applications	Saab 90 Scandia
Developed from	Pratt & Whitney R-2800 Pratt & Whitney R-4360

The Pratt & Whitney R-2180-E Twin Wasp E was a radial aero engine developed in the United States by Pratt & Whitney. It had two rows of seven cylinders each. Its only production application was on the post-Second World War Saab 90 Scandia airliner.

The R-2180-E is effectively a fourteen-cylinder simplification of the twenty-eight cylinder R-4360 Wasp Major engine; its cylinders are the same size and displacement as the Wasp Major.

The R-2180-E Twin Wasp E was available in a 'power egg' installation certificated in 1945 for use as an engine upgrade for the Douglas DC-4.

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Wikipedia