Pratt & Whitney R-2800
| Pratt & Whitney R-2800 Double Wasp | |
|---|---|
 Pratt-Whitney R-2800 |
|
| Type: | Radial engine |
| Design country: | |
| Manufacturer: | |
| Production time: |
1939 to 1960 |
| Number of pieces: |
125,334 |
The Pratt & Whitney R-2800 Double Wasp is an air-cooled multiple radial engine with 18 cylinders (2 × 9) from the Wasp engine family by Pratt & Whitney . The designation R-2800 means radial engine (radial engine) - displacement 2800 cubic inches , which corresponds to 45.9 liters. It first ran in 1937 and its maiden flight took place in 1939. Production ended after 125,334 copies in 1960.
The up to 2500 hp engine was an important factor for the Allied air force in World War II .
Aircraft
The engine was used to drive the following aircraft types:
- Canadair CL-215
- Convair CV-240
- Douglas A-26 Invader
- Douglas DC-6
- Grumman F6F Hellcat
- Martin B-26 Marauder
- Republic P-47 Thunderbolt
- Sikorsky CH-37 Mojave
- Vought F4U Corsair
Versions
The engine was continuously developed. This is how various versions were created:
- R-2800-9: 1491 kW (2000 hp )
- R-2800-10: 1510 kW (2026 hp)
- R-2800-10W: 1640 kW (2228 hp)
- R-2800-18W: 1827 kW (2482 hp)
- R-2800-27: 1510 kW (2026 hp)
- R-2800-31: 1508 kW (2023 hp)
- R-2800-34W: 1600 kW (2100 PS)
- R-2800-43: 1510 kW (2026 hp)
- R-2800-48: 1715 kW (2330 hp)
- R-2800-54: 1600 kW (2100 PS)
- R-2800-59: 1890 kW (2568 hp)
- R-2800-65: 1510 kW (2026 hp)
- R-2800-71: 1510 kW (2026 hp)
- R-2800-83W: 1715 kW (2330 hp)
Technical data R-2800-8 (Vought F4U-1 Corsair)
- Type: air-cooled 18-cylinder four-stroke double radial engine with supercharging
- Supercharging : a two-speed radial compressor (1st stage) - charge air cooler - a radial compressor (2nd stage)
- Fuel: AvGas 100/130
- Mixture formation: Bendix / Stromberg PT-13D4 pressure carburetor
- Ignition: Bendix Scintilla DF-18RN double magneto
- Stroke: 152.4 mm (6 inches )
- Bore: 146.0 mm (5.75 inches)
- Compression : 6.65: 1
- Displacement : 45.9 liters
- Maximum take-off power: 1491 kW (2000 BHP ) at 2700 rpm
- Maximum continuous output: 1249 kW (1675 bhp) at 2550 rpm
- Full pressure altitude : 6858 m
- Propeller ratio : 2: 1
- Compressor ratios 1st stage: 1st gear 6.46: 1/2. Gear 7.93: 1
- Compressor ratio 2nd stage: 7.8: 1
- Dry matter: 1124 kg
- Length: 2247 mm
- Diameter: 1334 mm
- specific power : 32.48 kW / l
- Power-to-weight ratio : 0.75 kg / kW
- Number of items: 3903
See also
Web links
Commons : Pratt & Whitney R-2800 - Collection of Pictures, Videos and Audio Files
Individual evidence
- ↑ Graham White: R-2800 Pratt & Whitney's Dependable Masterpiece . SAE, ISBN 0-7680-0272-9 .