An analysis of the factors that determine the periodic twist of an autogiro rotor blade, with a comparison of predicted and measured results (1937)
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en measured plane containing the blade span and the rotor axis. in flight. The agreement between the calculated and Experimental evidence has shown that these additional experimental results was satisfactory. An examination components have only a second-order influence on the of the assumption used… … problem and are not inherent in the direct-control type Fiquee 1.—Force diagram of autogiro rotor-blade element. of rotor; however, the large number of unsuccessful The coefficients of the air-twisting forces on an ele- machines is evidence that the basic factors controlling ment of the autogiro…
NASA Technical Reports Server (NTRS)
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