Williams International FJ44 family
Williams International FJ44 is a family of compact two-spool turbofan engines for light business jets. A low-pressure turbine drives the fan and intermediate-pressure compressor, while a separate high-pressure turbine drives a centrifugal compressor. Bypass air flows around the core and rejoins the exhaust stream. The current FJ33/FJ44 product brochure describes dual-channel full-authority digital engine control, and identifies the FJ44-1AP, FJ44-3 and FJ44-4 among the production offerings.
Identity
- Aliases
- FJ44Williams FJ44
- Domains
- aviation
- Identity Level
- family
- Kind
- turbofan
- Name
- Williams International FJ44 family
- Status
- active
Details
- Description
- Williams International FJ44 is a family of compact two-spool turbofan engines for light business jets. A low-pressure turbine drives the fan and intermediate-pressure compressor, while a separate high-pressure turbine drives a centrifugal compressor. Bypass air flows around the core and rejoins the exhaust stream. The current FJ33/FJ44 product brochure describes dual-channel full-authority digital engine control, and identifies the FJ44-1AP, FJ44-3 and FJ44-4 among the production offerings.
- Developers
- Manufacturers
Links
- Official Url
- https://www.williams-int.com/products/
Assets & Meta
- Creation Time
- July 30, 2026 at 00:03:09 UTC
- Updated Time
- October 17, 2026 at 14:05:37 UTC
Other
- Sources
- Accessed Date
- 2026-07-29
- Note
- Establishes FJ44 as a current Williams International engine-product family.
- Publisher
- Williams International
- Title
- Our FJ33/FJ44 Family of Engine Products
- Accessed Date
- 2026-07-29
- Note
- Identifies two Williams International FJ44-4A QPM engines, normal takeoff thrust of 3,420 pounds-force each, 3,600-pound-force automatic thrust reserve, dual-channel FADEC, and Quiet Power Mode.
- Publisher
- Pilatus Aircraft
- Title
- PC-24 — Just the Facts
- Accessed Date
- 2026-10-17
- Note
- Current product-linked brochure describes the two-spool architecture, bypass mixing, dual-channel FADEC and production offerings.
- Publisher
- Williams International
- Title
- The Williams Fanjet Family