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Pratt & Whitney R-2180-A Twin Hornet

The Pratt & Whitney R-2180-A Twin Hornet was a radial engine developed in the United States by Pratt & Whitney. It had two rows of seven cylinders each.

R-2180-A Twin Hornet
Douglas DC-4E.jpg
A Douglas DC-4E powered by four P&W R-2180 Twin Hornet engines
Type Radial engine
National origin United States
Manufacturer Pratt & Whitney
Major applications Douglas DC-4E
Number built 30
Developed from Pratt & Whitney R-1690
Developed into Pratt & Whitney R-2800
Pratt & Whitney R-4360


Specifications (R-2180-A)Edit

Data from The Engines of Pratt & Whitney: A Technical History[1]

General characteristics


  • Cooling system: Air-cooled


  • Power output: 1,200-1,500 hp

See alsoEdit


  1. ^ Connors, p.98
  • Connors, Jack (2010). The Engines of Pratt & Whitney: A Technical History. Reston. Virginia: American Institute of Aeronautics and Astronautics. ISBN 978-1-60086-711-8.
  • Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. ISBN 0-7509-4479-X.

External linksEdit