An analysis of single-engine rate-of-climb capabilities and thrust requirements of the S-3 and ES-3 aircraft in support of the TF34 Engine Component Improvement Program

Abstract

This thesis provides an analytical look at the performance of the TF34 engine installed on the Navy's 5-3 and ES-3 aircraft. The objective of the thesis is to provide information to assist in the effective management of proposals and improvements being considered under the TF34 Engine Component Improvement Program (CIP). Historical flight data, simulator flight and thrust data, historical operational engine data, and data from aircrew surveys were all analyzed to determine the significance of TF34 engine failures in critical flight situations and the degree of engine performance enhancement available. Based on the research, it was determined that a valid thrust deficiency exists with regard to single-engine rate-of-climb performance of the ES-3A aircraft. Suggestions to help solve this deficiency are presented. The most promising recommendation for increasing performance with a minimal initial cost outlay is to increase the engine interturbine temperature (ITT) operating limit.