1960-01-01

“Notes on the Results of Recent Tests of a Momentum Exchange Type Silencer for Turbojet Engines” 600301

Presented in this paper is a brief review of momentum exchange theory for Jet Noise Suppression. “Experimental Results from Scale Model Tests” are included. These data exhibit peak to peak attenuation of 20 db along maximum exhaust noise azimuths at a nozzle pressure ratio of 3.1.

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