Pratt & Whitney R-1340 Wasp family
Pratt & Whitney's foundational single-row, nine-cylinder air-cooled radial-engine family, introduced in the 1920s and produced in numerous civil and military variants.
Identity
- Aliases
- R-1340 WaspPratt & Whitney Wasp
- Domains
- aviation
- Identity Level
- family
- Kind
- piston-engine
- Name
- Pratt & Whitney R-1340 Wasp family
- Status
- active
Details
- Description
- Pratt & Whitney's foundational single-row, nine-cylinder air-cooled radial-engine family, introduced in the 1920s and produced in numerous civil and military variants.
- Developers
- First Flight Date
- 1926-05-05
- First Run Date
- 1925-12-24
- Manufacturers
- Piston Specs
- Aspiration
- naturally aspirated or supercharged, depending on variant
- Configuration
- single-row radial
- Cylinder Count
- 9
- Displacement L
- 22.2
- Max Power Kw
- 447
Links
Assets & Meta
- Creation Time
- July 29, 2026 at 22:25:53 UTC
- Updated Time
- July 29, 2026 at 22:25:53 UTC
Other
- Sources
- Accessed Date
- 2026-07-29
- Note
- Establishes R-1340 Wasp as Pratt & Whitney's first engine family, founded in 1925, and confirms that the family remains in use.
- Publisher
- Pratt & Whitney
- Title
- Our Story
- Accessed Date
- 2026-07-29
- Note
- Establishes the R-1340 family boundary, 1926 Navy approval, continuing legacy, and the growth of multiple Wasp variants.
- Publisher
- Pratt & Whitney
- Title
- RTX's Pratt & Whitney celebrates a century of flight