1. aircraft, missions and engines were selected. Advanced engine configurations and cycles with projected year 2000 component technologies were evaluated ana compared with a reference engine selected by the contractor. For typical comnuter and rotorcraft applications, fuel savings of 22 percent to 42 percent can be attained. For Sllgallon and 821gallon fuel, reductions i n airect operating cost range from 6 percent to
2. Selection of Evaluation Procedures and Assumptions