F. J. Bailey

Charts for Estimation of the Characteristics of a Helicopter Rotor in Forward Flight

1 - Profile Drag-lift Ratio for Untwisted Rectangular Blades

Charts showing the rotor profile drag-lift ratio are presented for a helicopter rotor operating in forward flight and having hinged rectangular untwis...

Recent Articles on Petroleum and Allied Substances

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Recent Articles on Petroleum and Allied Substances

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Report of Investigations

Jan-June 1920

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