Pratt & Whitney R-1830
From Wikipedia, the free encyclopedia
The Pratt & Whitney R-1830 Twin Wasp was an engine widely used in American aircraft in the 1930s and 1940s. It was a two-row, 14 cylinder, air-cooled radial design. It displaced 1,830 cubic inches (30 L) and its bore and stroke measured 5.5 and 5.5 in (140 and 140 mm), respectively.
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[edit] Models
- R-1830-64 - 900 hp (671 kW).
- R-1830-86 - 1,200 hp (895 kW)
[edit] Specifications (R-1830-86)
General characteristics
- Type: 14-cylinder air-cooled two-row radial engine
- Bore: 5.5 in (140 mm)
- Stroke: 5.5 in (140 mm)
- Displacement: 1,830 in³ (30 L)
- Diameter: 48.19 in (1224 mm)
- Dry weight: 1,162-1,467 lb (528-667 kg)
Components
- Valvetrain: Poppet, two valves per cylinder
- Supercharger: Single stage single speed centrifugal type supercharger
- Fuel system: One Stromberg injection carburetor
- Fuel type: 91/98 octane gasoline
- Cooling system: Air-cooled
Performance
- Power output:
- 1,200 hp (895 kW) at 2700 rpm at 4900 ft (1500 m)
- 1050 hp (783 kW) at 2550 rpm at 7500 ft (2250 m)
- Specific power: 0.66 hp/in³ (29.8 kW/L)
- Specific fuel consumption: 1.0 lb/(hp·h) (0.61 kg/(kW·h))
- Power-to-weight ratio: 0.91 hp/lb (1.50 kW/kg) (average weight estimation)
[edit] Related contents
- Pratt & Whitney Wasp series
- R-1340 Wasp
- R-985 Wasp Junior
- R-1535 Twin Wasp Junior
- R-2800 Double Wasp
- R-4360 Wasp Major
[edit] Reference
Bridgman, Leonard, ed. Jane’s All The World’s Aircraft 1951-1952. London: Samson Low, Marston & Company, Ltd 1951.
