Design Features of Rolls-Royce Advanced Technology Engines

The Rolls-Royce family of large high by-pass ratio engines has resulted from a long study aimed at providing the optimum compromise between first cost, operating cost, weight, and noise level for the new generation of subsonic civil transport airplanes.

This paper considers the design approach applied to some aspects of reliability, failure detection, and rectification in these engines and also the mechanical implications of some noise-suppression features.