Noise source abatement technology and cost analysis including retrofitting
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 |
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