Pratt & Whitney R-1830 Twin Wasp
The Pratt & Whitney R-1830 Twin Wasp was an American aircraft engine widely used in the 1930s and 1940s. Produced by Pratt & Whitney, it was a two-row, 14-cylinder, air-cooled radial design. It displaced 1,830 cu in (30.0 L) and its bore and stroke were both 5.5 in (140 mm). A total of 173,618 R-1830 engines was built,[1] and from their use in two of the most-produced aircraft ever built, the B-24 bomber and DC-3 transport, more Twin Wasps may have been built than any other aviation piston engine in history. A "bored-out" version (to a 5.75 inch/146 mm cylinder bore) with a slightly higher power rating and other slight changes in detail design was produced as the R-2000.
Variants
- R-1830-1: 800 hp (597 kW)
- R-1830-9: 850 hp (634 kW), 950 hp (708 kW)
- R-1830-11: 800 hp (597 kW)
- R-1830-13: 900 hp (671 kW), 950 hp (708 kW), 1,050 hp (783 kW)
- R-1830-17: 1,200 hp (895 kW)
- R-1830-21: 1,200 hp (895 kW)
- R-1830-25: 1,100 hp (820 kW)
- R-1830-33: 1,200 hp (895 kW)
- R-1830-35: 1,200 hp (895 kW) Fitted with GE B-2 turbosupercharger
- R-1830-41: 1,200 hp (895 kW) Fitted with GE B-2 turbosupercharger
- R-1830-43: 1,200 hp (895 kW)
- R-1830-45: 1,050 hp (783 kW)
- R-1830-49: 1,200 hp (895 kW)
- R-1830-64: 850 hp (634 kW), 900 hp (671 kW)
- R-1830-65: 1,200 hp (895 kW)
- R-1830-66: 1,000 hp (746 kW), 1,050 hp (783 kW), 1,200 hp (895 kW)
- R-1830-72: 1,050 hp (783 kW)
- R-1830-76: 1,200 hp (895 kW)
- R-1830-82: 1,200 hp (895 kW)
- R-1830-86: 1,200 hp (895 kW)
- R-1830-88: 1,200 hp (895 kW)
- R-1830-90: 1,200 hp (895 kW)
- R-1830-90-B: 1,200 hp (895 kW)
- R-1830-92: 1,200 hp (895 kW)
- R-1830-94: 1,350 hp (1,007 kW)
- R-1830-S1C3-G: 1,050 hp (783 kW), 1,200 hp (895 kW)
- R-1830-S3C4: 1,200 hp (895 kW)
- R-1830-S3C4-G: 1,200 hp (895 kW)
- R-1830-S6C3-G: 1,100 hp (820 kW)
- R-1830-SC-G: 900 hp (671 kW)
- R-1830-SC2-G: 900 hp (671 kW), 1,050 hp (783 kW)
- R-1830-SC3-G: 1,065 hp (749 kW) same engine built in Sweden as STWC-3G by SFA company for Swedish J 22, B 17 and B 18.
Applications
R-1830 mounted on the left wing of an ex-military Douglas C-47
RAF Dakota's Twin Wasp out for servicing
Engines on display
- Model R-1830 on display at the dutch aviation museum Aviodrome
Specifications (R-1830-S1C-G)
Pratt & Whitney R-1830 "Twin Wasp" (sectioned)
Data from [4]
General characteristics
- Type: Fourteen-cylinder two-row supercharged air-cooled radial engine
- Bore: 5.5 in (139.7 mm)
- Stroke: 5.5 in (139.7 mm)
- Displacement: 1,829.4 in³ (30 l)
- Length: 59.06 in (1,500 mm)
- Diameter: 48.03 in (1,220 mm)
- Dry weight: 1,250 lb (567 kg)
Components
Performance
See also
- Related development
- Pratt & Whitney Wasp series
- Pratt & Whitney R-985 Wasp Junior
- Pratt & Whitney R-1340 Wasp
- Pratt & Whitney R-1535 Twin Wasp Junior
- Pratt & Whitney R-2000 Twin Wasp
- Pratt & Whitney R-2800 Double Wasp
- Pratt & Whitney R-4360 Wasp Major
- Comparable engines
- Related lists
References
- Angelucci, Enzo (1988, Revised Edition 2006). Complete Book of World War II Combat Aircraft. VMB Publishers. ISBN 978-88-540-0829-8.
- Bridgman, Leonard, ed. Jane's All The World's Aircraft 1951–1952. London: Samson Low, Marston & Company, Ltd 1951.
External links
|
---|
| General | |
---|
| Military | |
---|
| Accidents / incidents | |
---|
| Records | |
---|
| Misc. | |
---|
|