Wind-tunnel tests on a 12-ft diameter helicopter rotor

Show simple item record H. B. Squire en_US R. A. Fail en_US R. C. W. Eyre en_US 2014-10-21T15:52:22Z 2014-10-21T15:52:22Z 1949 en_US
dc.identifier.other ARC/R&M-2695 en_US
dc.description.abstract Measurements of the thrust, torque and flapping angle for a 12-ft diameter rotor over a range of blade angle, shaft inclination and tip-speed ratio have been made to give information on the validity of the standard rotor theory and of the effect of stalling on the retreating blade. Good agreement with the theory was obtained over the normal operating range, using aerofoil characteristics determined from the measurements in the static thrust condition. Stalling was found to be progressive in character showing first by an increase in torque and flapping angle and later by a fall in thrust, as compared with the calculated values. en_US
dc.relation.ispartofseries Aeronautical Research Council Reports & Memoranda en_US
dc.title Wind-tunnel tests on a 12-ft diameter helicopter rotor en_US

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