The Navy has been investigating techniques to reduce jet engine noise during ground run-up testing. The objective of this program is to continue the development of the Coanda/Refraction concept, investigated during the exploratory contracts, to attenuate the noise generated in the exhaust of turbojet/turbofan aircraft engines during ground run-up testing. Full scale design, fabrication and testing will be accomplished using the Coanda concept to validate the results obtained during the exploratory model studies and provide accurate noise reduction data. Concurrent with the full scale activity, additional model studies will also be conducted to evaluate the Coanda concept and its applicability to engines installed in airframes. This document defines the detail plan that will be followed to accomplish the overall plan. (Author)


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    Title :

    Navy Coanda/Refraction Ground Noise Suppressor Program Plan


    Contributors:

    Publication date :

    1974


    Size :

    86 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English