DETECTION of DETONATION and Other Operating Abnormalities in AIRCRAFT ENGINES by Means of Special Instrumentation

THE need for detecting and evaluating detonation on large aircraft engines gave rise to a long period of development of laboratory equipment for this purpose, finally resulting in a practical precision laboratory device.

This instrument, in addition to determining the degree of detonation, serves as a valuable indicator of other abnormalities within the engine cylinder.

The development work necessary to accomplish this purpose at Wright Aeronautical Corp. is described here by Mr. Streett together with a detailed discussion of operating techniques and interpretation of various phenomena indicated. The outlook for future additional development is also briefly discussed by the author.