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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    Titel :

    Approach to practical helicopter


    Weitere Titelangaben:

    Aero Digest


    Beteiligte:
    Wilford, E.B. (Autor:in)

    Erschienen in:

    Aero Digest ; 47 , n 2


    Erscheinungsdatum :

    1944


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    A practical approach to helicopter internal noise prediction

    Levine, L. S. / Defelice, J. J. | NTRS | 1978


    Practical instrument flying in helicopter

    Cannon, J.A. / Niehaus, O.Q. | Engineering Index Backfile | 1950


    Practical instrument flying in helicopter

    Cannon, J.A. / Niehaus, O.Q. | Engineering Index Backfile | 1950


    A practical helicopter cabin noise simulator

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