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    STOL noise sources and fan noise treatment (1972)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: STOL noise goals, noise sources, and their affects on engine and propulsion systems design are considered. It is shown that major noise sources constitute the blown-flap system with its turbofan engine and the augmentor wing propulsion system. Most of the problem areas associated with STOL propulsion systems are defined and the development of a multistage fan engine with proper rotor-stator spacings and low noise core exhaust jet is illustrated. A variable-area acoustic inlet provides near sonic flow conditions during takeoff and landing.
    Keywords: AIRCRAFT
    Type: Aircraft Engine Noise Reduction; p 247-258
    Format: text
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