Pratt & Whitney R-4360 Wasp Major
E502756
The Pratt & Whitney R-4360 Wasp Major is a massive 28-cylinder, four-row air-cooled radial piston aircraft engine that powered some of the largest and last-generation propeller-driven military aircraft of the mid-20th century.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pratt & Whitney R-4360 Wasp Major canonical | 5 |
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | aircraft piston engine ⓘ |
| application |
large airliners
ⓘ
large long-range bombers ⓘ military transports ⓘ |
| bore | 5.75 inches ⓘ |
| compressionRatio | approximately 6.7:1 in typical variants ⓘ |
| configuration | radial ⓘ |
| coolingSystem | air-cooled ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cylinderArrangement | four-row ⓘ |
| designGoal | high power for large, long-range aircraft ⓘ |
| displacement |
4,362 cubic inches
ⓘ
approximately 71.5 liters ⓘ |
| driveType | geared propeller drive ⓘ |
| era | World War II and early Cold War ⓘ |
| eraRole | powerplant for last-generation large propeller-driven military aircraft ⓘ |
| family | Pratt & Whitney Wasp series NERFINISHED ⓘ |
| firstRun | 1944 ⓘ |
| fuelType | avgas ⓘ |
| ignitionSystem | dual ignition ⓘ |
| manufacturer | Pratt & Whitney NERFINISHED ⓘ |
| NATOReportingName | Wasp Major NERFINISHED ⓘ |
| notableCharacteristic |
among the last large piston engines before widespread adoption of turbojets
ⓘ
one of the most powerful piston aircraft engines mass-produced ⓘ |
| numberOfCylinders | 28 ⓘ |
| powerOutput |
approximately 3,000 horsepower in early versions
ⓘ
up to about 3,800 horsepower in later versions ⓘ |
| productionPeriod | mid-1940s to early 1950s ⓘ |
| service |
United States Air Force
NERFINISHED
ⓘ
United States Navy NERFINISHED ⓘ |
| stroke | 6.0 inches ⓘ |
| supercharging | geared centrifugal supercharger ⓘ |
| typicalPropeller | four-bladed constant-speed propeller ⓘ |
| usedInAircraft |
Boeing 377 Stratocruiser
NERFINISHED
ⓘ
Boeing B-50 Superfortress NERFINISHED ⓘ Boeing C-97 Stratofreighter NERFINISHED ⓘ Boeing KC-97 Stratofreighter NERFINISHED ⓘ Convair B-36 Peacemaker NERFINISHED ⓘ Douglas C-124 Globemaster II NERFINISHED ⓘ Fairchild C-119 Flying Boxcar NERFINISHED ⓘ Martin JRM Mars NERFINISHED ⓘ Northrop XB-35 NERFINISHED ⓘ Northrop YB-49 NERFINISHED ⓘ Republic XF-12 Rainbow NERFINISHED ⓘ |
| valvetrain | overhead poppet valves ⓘ |
| weightClass | very large radial engine ⓘ |
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Boeing C-97 Stratofreighter