Strip analysis procedure used to calculate effect of twist and plan form taper, on rotor efficiency in hovering; comparison made for rotors of equal solidity, solidities of tapered blades being computed by means of equivalent chord; 5% increase is shown over rectangular blades if both linear twist (-8° to -12°) and taper (ratio of root to tip chords of 3) are applied.


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    Title :

    Effect of rotor-blade twist and plan-form taper on helicopter hovering performance


    Additional title:

    Nat Advisory Committee Aeronautics -- Tech Note


    Contributors:
    Gessow, A. (author)


    Publication date :

    1948


    Size :

    26 pages


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English


    Keywords :