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1. Flight performance of a transonic turbine-driven propeller designed for minimum noise

by Thomas C O'Bryan | Jerome B Hammack.

Material type: book Book Publisher: Availability: No items available Damaged (1).

2. An investigation of effect of downwash from a vtol aircraft and helicopter in the ground environment [NASA TN D-977]

by O'Bryan, Thomas C.

Material type: book Book; Format: print ; Literary form: not fiction Description: 19p.Publisher: Washington, D.C. Nasa 1961Availability: Items available for reference: PK Kelkar Library, IIT Kanpur (1).

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