Pratt & Whitney R-4360 Wasp Major
Historical Pratt & Whitney four-row, 28-cylinder, air-cooled radial piston-engine family. The National Museum of the United States Air Force identifies a maximum output of 3,500 horsepower and approximately 3,500 pounds mass; dash-number variants remain distinct.
Identity
- Aliases
- R-4360Pratt & Whitney R-4360Wasp Major
- Domains
- aviation
- Identity Level
- family
- Kind
- piston-engine
- Name
- Pratt & Whitney R-4360 Wasp Major
- Status
- historical
Details
- Description
- Historical Pratt & Whitney four-row, 28-cylinder, air-cooled radial piston-engine family. The National Museum of the United States Air Force identifies a maximum output of 3,500 horsepower and approximately 3,500 pounds mass; dash-number variants remain distinct.
Links
Assets & Meta
- Creation Time
- August 14, 2026 at 00:40:10 UTC
- Updated Time
- August 14, 2026 at 00:40:10 UTC
Other
- Sources
- Accessed Date
- 2026-08-13
- Note
- Official fact sheet identifies the R-4360 as a 28-cylinder air-cooled radial engine producing up to 3,500 hp and weighing approximately 3,500 lb.
- Publisher
- National Museum of the United States Air Force
- Title
- Pratt & Whitney R-4360 Wasp Major
- Accessed Date
- 2026-08-13
- Note
- Smithsonian record corroborates the R-4360 Wasp Major family and keeps the -59B dash variant distinct.
- Publisher
- Smithsonian National Air and Space Museum
- Title
- Pratt & Whitney Wasp Major R-4360-59B cutaway