Difficulties of designing propellers with pitch variable in flight; formulas for calculating forces acting at blade root developed; couple perpendicular to plane of bearing which is absorbed by action of balls; value of total torque found to be very high; Ratier Company developed helicoidal thrust bearing; two- and three-bladed wood propellers; details of Ratier propellers; mechanisms for controlling variations in pitch. (Translation) (See also Aeronautique vol. 11, no. 127, Dec. 1929 pp. 407-411, 12 figs.)


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    Title :

    Ratier metal propeller of variable pitch in flight


    Additional title:

    L'helice metallique Ratier a pas variable en vol


    Contributors:
    Leglise, P. (author)


    Publication date :

    1930


    Size :

    9 pages


    Remarks:

    10 Figs.


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English






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