RB 211 Progress and Prospects

Evolution of a range of advanced turbofan engines must of necessity, be a fairly lengthy process. Not only has the required technology to be established in current production versions, but a high level of reliability has to be demonstrated over a period of years if the development potential of the powerplant is to be fully realised. The data fed back from operators to manufacturers is of prime importance in this context, and generates the confidence which enables a trouble‐free entry into service of more powerful variants of the engine.