Accession Number : AD0677739

Title :   AN INVESTIGATION OF ROCKET ENGINE SOUND SUPPRESSION BY WATER INFLOW TO A SUBMERGED FLAME DEFLECTOR,

Corporate Author : GENERAL DYNAMICS/CONVAIR SAN DIEGO CALIF

Personal Author(s) : Maraschin,R. A. ; Leo,P. P.

Report Date : 06 DEC 1961

Pagination or Media Count : 21

Abstract : With the advent of multi-million pound-thrust boosters, consideration must be given to methods of attenuating the engine noise level in the vicinity of the firing site. It was proposed that a static test or launch facility be located at a lake or similar basin where a flame deflector could be submerged in the lake with the inlet and outlet above the water level. At the time of the firing, flood gates around the deflector inlet would be opened, and the lake water utilized to cool the flame deflector and attenuate the noise produced by the engines. (Author)

Descriptors :   (*LIQUID PROPELLANT ROCKET ENGINES, *FLAME DEFLECTORS), (*ROCKET ENGINE NOISE, ATTENUATION), ROCKET MODELS, EXHAUST GASES, UNDERWATER, ACOUSTIC IMPEDANCE, SOUND TRANSMISSION

Subject Categories : Surface-launched Guided Missiles
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE