Accession Number : AD0780574

Title :   Small Turbine Engine Noise Reduction. Volume III. Suppression Design and Prediction Methodology/Materials Tests.

Descriptive Note : Final rept. 7 May 71-31 May 73,

Corporate Author : AIRESEARCH MFG CO OF ARIZONA PHOENIX

Personal Author(s) : Gipson,W. M. ; Tedrick,R. N.

Report Date : DEC 1973

Pagination or Media Count : 149

Abstract : The volume reviews the published theoretical background from a number of sources to present a uniform approach to duct and lining sound-attenuation prediction. It further reviews the results of a wide variety of acoustical tests of lining materials and configurations. The final development of an applicable technology for small gas turbine duct attenuator design and attenuation prediction is included, along with comparison to actual turbopropulsion duct test data. (Author)

Descriptors :   *Turboprop engines, *Turbofan engines, *Noise reduction, *Reconnaissance aircraft, Aerial reconnaissance, Combat surveillance, Low altitude, Jet engine noise, Attenuators

Subject Categories : Patrol and Reconnaissance Aircraft
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE