Isosceles triangle twisted into screw surface about its axis is proposed as propeller for transonic flight speeds; purpose is to attain drag reduction associated with large sweepback in structurally practicable configuration; mathematical theory for such propeller presented; 12-ft propeller estimated to be able to absorb 18,500 blip at 840 mph at sea level.


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    Title :

    Transonic propeller of triangular plan form


    Additional title:

    Nat Advisory Committee Aeronautics -- Tech Note


    Contributors:


    Publication date :

    1947


    Size :

    34 pages


    Remarks:

    7 Supp Plates


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English