With improved rotor systems, better airfoils, simplification of structure, rotors of 80 ft can now be built which will operate efficiently; this size is necessary to produce rotary wing airplane to operate at 40¢ per ton mile, which is minimum economical requirement for successful aerial bus service.


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    Title :

    Approach to practical helicopter


    Additional title:

    Aero Digest


    Contributors:

    Published in:

    Aero Digest ; 47 , n 2


    Publication date :

    1944


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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    A practical helicopter cabin noise simulator

    Chillery, J.A. / Collister, J.B. | Tema Archive | 1986