Engine Health Monitoring for the Gas Turbines in Royal Naval Ships

Details are given of an integrated engine health monitoring (EHM) program for use by the staffs of Royal Naval ships primarily aimed eventually at engine removal “on condition” rather than on fixed overhaul life. The logic behind the choice of particular EHM methods is given followed by a description of the data collection and analysis procedures. Emphasis is placed on fault diagnosis, using formal charts to reduce the time and effort involved.