Results indicate that changes in angle of attack, hub rotational speed, and forward speed generally had only small effect on equivalent flat plate area representing parasite drag; drag coefficients of basic hubs increased with hub area and varied from 0.5 to 0.76 for hubs tested.


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    Title :

    Parasite-drag measurements of five helicopter rotor hubs


    Additional title:

    NASA -- Memo


    Contributors:


    Publication date :

    1959


    Size :

    25 pages


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English


    Keywords :


    Parasite-Drag Measurements of Five Helicopter Rotor Hubs

    G. B. Churchill / R. D. Harrington | NTIS | 1959


    Parasite-Drag Measurements of Five Helicopter Rotor Hubs

    Churchill, Gary B. / Harrington, Robert D. | NTRS | 1959



    Reduction of helicopter parasite drag

    Harrington, Robert D. | TIBKAT | 1954


    Reduction of helicopter parasite drag

    Harrington, R.D. | Engineering Index Backfile | 1954