Noise source abatement technology and cost analysis including retrofitting

Noise source abatement technology and cost analysis including retrofitting

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JT9D Engine Noise Reduction Features The JT9D high bypass ratio turbofan engine which powers the 7U7 and DC10-U0 ... stage fan of the JT9D was minimized by reduction in fan tip speed, the omission of inlet guide vanes, providing ampleanbsp;...


Title:Noise source abatement technology and cost analysis including retrofitting
Author: William C. Sperry, United States. Environmental Protection Agency
Publisher: - 1973
ISBN-13:

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