Pratt & Whitney JT3D/TF33 family
The low-bypass turbofan family developed from the J57 gas generator, marketed as JT3D for civil aircraft and designated TF33 in military service.
Identity
- Aliases
- Pratt & Whitney JT3DPratt & Whitney TF33TF33
- Domains
- aviation
- Identity Level
- family
- Kind
- turbofan
- Name
- Pratt & Whitney JT3D/TF33 family
- Status
- active
Details
- Description
- The low-bypass turbofan family developed from the J57 gas generator, marketed as JT3D for civil aircraft and designated TF33 in military service.
- Developers
- First Flight Date
- 1960-06-22
- Lineage
- Note
- Pratt & Whitney created JT3D/TF33 by retaining the service-proven J57 gas generator and adding a fan system.
- Related Propulsion System
- Relationship
- direct-derivative-of
- Sources
- Nested value
- Nested value
- Manufacturers
Assets & Meta
- Creation Time
- July 29, 2026 at 21:42:10 UTC
- Updated Time
- July 29, 2026 at 21:54:36 UTC
Other
- Sources
- Accessed Date
- 2026-07-29
- Note
- Supports JT3D as a J57 gas-generator derivative, its turbofan architecture, and its 22 June 1960 first flight.
- Publisher
- Smithsonian National Air and Space Museum
- Title
- Pratt & Whitney JT3D-1 Production Prototype Turbofan Engine
- Accessed Date
- 2026-07-29
- Note
- Supports TF33 as the military JT3D designation and the direct J57-core relationship.
- Publisher
- National Museum of the United States Air Force
- Title
- Pratt & Whitney TF33 Turbofan
- Accessed Date
- 2026-07-29
- Note
- Supports active TF33 repair and overhaul in the current Air Force sustainment inventory.
- Publisher
- United States Air Force
- Title
- Oklahoma City Air Logistics Complex