U.S. Air Force.
Via Wikipedia
Commons.
The Pratt & Whitney
R-2800 Double Wasp was
an air-cooled radial aircraft engine with 18 cylinders arranged in two
rows. Bore was 5.75 inches (146mm) and stroke 6 inches (152mm). A
prototype F4U powered by an early R-2800 achieved a level flight
speed of 405 miles per hour (652 km/h) in 1940, a new world record, and
"Hap" Arnold asked Pratt
& Whitney to drop its work on liquid-cooled engines in favor of
further development of the R-2800. It was a remarkably powerful engine
for its day and was used in
the majority of high-performance
American military aircraft.
| Model |
Horsepower |
Wattage |
Notes |
|---|---|---|---|
| 5 |
1850 hp takeoff 1500 hp at 14,000 feet (4270 m) |
1380 kw takeoff 1120 at 14,000 feet (4270 m) |
|
| 8 |
2000 hp |
1490 kW |
|
| 8W |
2250 hp |
1680 kW |
Equipped with water injection
power boost |
| 10 |
2000 hp |
1490 kW |
|
| 21 |
2000 hp |
1490 kW |
|
| 31 |
2000 hp |
1490 kW |
|
| 34 |
2100 hp |
1570 kW |
|
| 51 |
2000 hp |
1490 kW |
|
| 57 |
2800 hp |
2090 kW |
|
| 59 |
2300 hp |
1715 kW |
|
| S1A4G | 1850 hp |
1380 kW |
Aircraft using this engine included the A-26 Invader, B-26 Marauder, C-46 Commando, F6F Hellcat, F4U Corsair, P-47 Thunderbolt, P-61 Black Widow, PBM-5 Mariner, PV-1 Ventura, PV-2 Harpoon, TBF-3 Avenger.
References
Gunston (2006)The Pacific War Online Encyclopedia © 2008-2009 by Kent G. Budge. Index
