USAF Application of Airborne Recorders for Propulsion Diagnostics

The United States Air Force is evaluating the application of an airborne analyzer and digital recording system to assess, diagnose, and predict turbojet engine health on an immediate and long-term basis.

This paper presents a brief discussion of the C-141 “Lead-the-Force” System, the C-5A Malfunction Detection, Analysis, and Recording Subsystem, and discusses in detail the Engine Analyzer System (EASY). The EASY discussion includes the design philosophy, hardware, test programs, computer programs, and test results.