CFM International F108
CFM International F108 is the military designation for the CFM56-2 high-bypass turbofan. CFM International’s current legacy-engine material gives the CFM56-2 a 22,000–24,000-lb class and its USAF order material specifies the F108 at 22,000 lb (97.86 kN) for RC-135 applications; the model also powers KC-135R, E-3, and E-6B fleets.
Identity
- Aliases
- F108F108-CFM56-2CFM56-2
- Domains
- aviation
- Identity Level
- model
- Kind
- turbofan
- Name
- CFM International F108
- Status
- active
Details
- Air Breathing Specs
- Max Thrust Kn
- 97.86
- Description
- CFM International F108 is the military designation for the CFM56-2 high-bypass turbofan. CFM International’s current legacy-engine material gives the CFM56-2 a 22,000–24,000-lb class and its USAF order material specifies the F108 at 22,000 lb (97.86 kN) for RC-135 applications; the model also powers KC-135R, E-3, and E-6B fleets.
- Developers
- Family
- Manufacturers
- Service Entry Date
- 1984
Links
Assets & Meta
- Creation Time
- August 14, 2026 at 10:42:12 UTC
- Updated Time
- August 15, 2026 at 09:14:45 UTC
Other
- Sources
- Accessed Date
- 2026-08-14
- Note
- GE Aerospace identifies CFM56-2 as the F108 military designation, documents KC-135R re-engining, 1,962 engines ordered for 468 aircraft, and more than 11 million flight hours.
- Publisher
- GE Aerospace
- Title
- CFM-Powered KC-135R Tanker Fleet Logs 11 Million Flight Hours
- Accessed Date
- 2026-08-14
- Note
- GE Aerospace documents CFM56-2/F108 performance upgrades for KC-135R and E-6B fleets and continuing reliability, fuel-efficiency, and life-extension work.
- Publisher
- GE Aerospace
- Title
- CFM56-2 Performance Upgrade yielding results for USAF
- Accessed Date
- 2026-08-15
- Note
- CFM International’s legacy-engine page identifies the CFM56-2 as a 22,000–24,000-pound-thrust engine and lists KC-135R, E-3, and E-6B applications.
- Publisher
- CFM International
- Title
- Legacy CFM Engines — CFM56-2 Engine
- Accessed Date
- 2026-08-15
- Note
- CFM International identifies the CFM56-2 military designation as F108 and states that the F108 engine powering RC-135 aircraft is rated at 22,000 pounds (98 kN) thrust.
- Publisher
- CFM International
- Title
- USAF Orders Additional CFM56-2 Engines