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Development and Testing of an Inflight Engine Performance Monitoring Technique for the U.S. Navy P-3C Airplane
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English
Abstract
In January 1983, the Naval Air Systems Command authorized a coordinated NAVAIRTESTCEN/Lockheed study to establish the feasibility of a low-cost procedure for monitoring U.S. Navy P-3C T56-A-14 engine performance from inflight recorded cockpit instrumentation. The resulting study, still in progress, was organized into three phases. In the first phase, a flight test program was conducted to obtain actual engine performance data from which performance standards or baselines could be developed. In the second phase, algorithms and procedures for implementing inflight engine performance trending were established. Finally, in January of 1984 a fleet trial was initiated. This paper discusses the user's motivation for such a system, describes the flight test program and associated analyses, outlines the proposed engine monitoring system, and concludes with a status report on the ongoing fleet trials.
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Authors
Citation
Dupcak, J., Deppe, P., and Prevatt, R., "Development and Testing of an Inflight Engine Performance Monitoring Technique for the U.S. Navy P-3C Airplane," SAE Technical Paper 841462, 1984, https://doi.org/10.4271/841462.Also In
References
- NATOPS Flight Manual, Navy Model P-3C Aircraft, NAVAIR 01-75PAC-1 15 November 1979
- Allison Gas Turbine Operations Report EDR 11537 “Introduction for use of a Program, in the Form of Digital Computer Cards, to Calculate Steady State Performance of the Allison Model T56-A-15 Turboprop Engine,” 1 August 1983
- T56-A-14 Military Turboprop Engine Specification 670-D 1 January 1975
- Lockheed-California Company Report LR 30603 “Evaluation of Feasibility of P-3 Inflight Engine Performance Trending,” 16 December 1983
- Allison Gas Turbine Operations Report TDR AR0031-274 “T56-A-14 Performance Installed in P-3 Aircraft,”
- SAE Aerospace Recommended Practice 1587 “Aircraft Gas Turbine Engine Monitoring System Guide,” 30 April 1981