This report is an extension of NACA-TR-168 and has been prepared for the National Advisory Committee for Aeronautics to show the relative values of various direct and geared drives. It is well known that in general a geared-down propeller has higher efficiency than a direct-drive propeller, but the literature on this subject does not present the data in such form that the aeronautical engineer can readily visualize the effect of gearing. This report has been prepared to show the actual net gain or loss in maximum efficiency due to the use of various modifications of the conventional two-bladed, direct-drive propeller. (author)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Relative efficiency of direct and geared drive propellers


    Beteiligte:

    Erscheinungsdatum :

    01.01.1924


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Relative efficiency of direct and geared drive propellers

    Diehl, W.S. | Engineering Index Backfile | 1923


    Geared down propellers and efficiency of commercial airplanes

    Mock, R.M. | Engineering Index Backfile | 1927


    Geared electric drive

    Crouch, A.W. | Engineering Index Backfile | 1938


    Geared engines for airplanes antedate direct-drive types

    Neil, E.B. | Engineering Index Backfile | 1929