Writer doubts accuracy of Teddington data; first point is relatively high-thrust deduction figure, and fact that it decreased with speed; considers 0.835 propulsive coefficient in table referring to ship speed of 8 knots; attempt made to prove inaccuracy by showing absolute value of 1.33 reached by relative rotative efficiency of 8 knots; asserts that Teddington torque apparatus is erroneous by approximately constant negative amount.


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    Title :

    The Teddington self-propelled model


    Additional title:

    Shipbldg. Shipg. Rec


    Contributors:

    Published in:

    Publication date :

    1928


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


    The Teddington self-propelled model

    Heppell, W.J. | Engineering Index Backfile | 1929


    New tank at Teddington

    Engineering Index Backfile | 1932


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