R-2800 Double Wasp
The R-2800 is considered one of the premier radial piston engines ever designed and is notable for its widespread use in many important American aircraft during and after World War II. During the war years, Pratt & Whitney continued to develop new ideas to upgrade this already powerful workhorse, most notably water injection to give emergency power in combat.
– Design & Development
– Variants
|
Type: 18-cylinder air-cooled two-row radial engine with water injection Manufacturer: Pratt & Whitney |
First run: 1937 Produced 1939 and 1960 Number built: 125,334 |
|
General characteristics Type: Eighteen-cylinder two-row air-cooled radial engine Bore: 5.75 in (146.05 mm) Stroke: 6 in (152.4 mm) |
Displacement: 2,804.5 in³ (45.96 L) Length: N/A Diameter: 52.8 in (1,342 mm) Dry weight: 2,360 lb (1,073 kg) |
Components
Valvetrain: Poppet, two valves per cylinder
Supercharger: Variable-speed single-stage single-speed centrifugal type supercharger
Fuel system: One Stromberg injection carburETOr
Fuel type: 100/130 octane gasoline
Cooling system: Air-cooled
Reduction gear: N/A
Performance
Power output: 2,100 hp (1,567 kW) @ 2,700 rpm
Specific power: 0.75 hp/in³ (34.1 kW/L)
Compression ratio: N/A
Specific fuel consumption: N/A
Power-to-weight ratio: 0.89 hp/lb (1.46 kW/kg)
Sources:
Wikipedia
Pratt & Whitney
