Rolls-Royce advances MV-75 engine testing for U.S. Army tiltrotor program
Development work is progressing on the propulsion system for the U.S. Army's MV-75 Cheyenne, a multibillion-dollar tiltrotor aircraft expected to replace many Black Hawk helicopters. Rolls-Royce says it has brought the aircraft's engine to full power with a new digital controller, marking another step toward flight readiness.
Highlights
- Rolls-Royce has successfully tested its AE 1107 engine for the MV-75 Cheyenne to full power with a new digital FADEC system.
- MV-75, built by Bell Textron with two AE 1107 engines each, aims to replace a significant portion of the U.S. Army's Black Hawk helicopter fleet.
- Test results are being shared with Bell and the Army to confirm the AE 1107 meets requirements, with the 101st Airborne Division set to receive the first MV-75 units.
Engine milestone and testing progress
As first reported by Axios, Rolls-Royce has brought its AE 1107 engine for the MV-75 Cheyenne to full power using a new full authority digital engine control, or FADEC, as the program moves through development and certification work.Scott Ames, a senior vice president at Rolls-Royce, says a new aircraft design depends on multiple subsystems and regulatory certification processes aligning before the aircraft can lift off in its current configuration. He says those elements must come together step by step before the MV-75's first flight.
Each Cheyenne, built by Bell Textron, is set to use two Rolls-Royce AE 1107 engines. Engine testing began in December in Indiana, while the FADEC in use is described by Ames as a brand-new design with extensive cyber-resilience features.
Program implications for Army aviation
The MV-75 program is closely watched because it is expected to replace a significant share of the U.S. Army's Black Hawk helicopter fleet, giving the engine milestone broader importance for future Army aviation procurement and operations.Ames says test results are being shared with Bell and the Army to show that the AE 1107 meets program requirements. The 101st Airborne Division at Fort Campbell, Kentucky, is expected to be the first unit to receive the tiltrotor.
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