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Small Turbine Engine Noise Reduction. Volume VI, Part II. Duct Design and Attenuation Program User's Manual.
Final rept. 7 May 71-31 May 73,
AIRESEARCH MFG CO OF ARIZONA PHOENIX
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Vol. 6, Part 2, presents a computational package that designs attenuated duct systems for achieving predetermined attenuation increments or predicts those increments for previously determined duct and attenuator configurations. Two basic approaches have been used in this task--one entirely empirical in its development, and the other theoretically based. Author
APPROVED FOR PUBLIC RELEASE