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 | |
|---|---|
 | |
| 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 |
Applications
- Douglas DC-4E
- North American XB-21
- Republic P-44 Rocket
- Stearman XA-21
Specifications (R-2180-A)
Data from The Engines of Pratt & Whitney: A Technical History[1]
General characteristics
- Type: 14-cylinder air-cooled, twin-row radial engine
- Bore: 5.75 in. (146 mm)
- Stroke: 6.00 in. (152 mm)
- Displacement: 2,181 in³ (35.7 L)
- Length: 76.20 in (1.94 m)
- Diameter: 54 in (1.37 m)
- Dry weight: 1,565 lb-1,647 lb
Components
- Cooling system: Air-cooled
Performance
- Power output: 1,200-1,500 hp
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See also
Related development
- Pratt & Whitney R-1690 Hornet
- Pratt & Whitney R-1830 Twin Wasp
- Pratt & Whitney R-2180-E Twin Wasp E
- Pratt & Whitney R-2800 Double Wasp
- Pratt & Whitney R-4360 Wasp Major
Comparable engines
Related lists
References
- 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 links
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