The RB211-535E4 - A Commercially Proven Engine for the Military of Tomorrow 892364
Commercial Off-the-shelf (COTS) acquisition of modern gas turbine propulsion units can offer significant advantages to the Military. In an environment where the requirements and demands are similar, as is the case for medium turbofan applications, then synergism with a commercial powerplant offers benefits in Reliability, Maintainability, Capability and, above all, Cost of ownership.
The RB211-535E4 is a technology development from the highly derivative RB211 family, in the medium turbofan class. Since entering commercial service in 1984, the E4 is proving itself to be the most reliable medium turbofan engine in service today.