The zero and low speed controllability of heavy lift airships under various wind conditions as affected by the buoyancy ratio are investigated. A series of three hybrid LTA vehicls were examined, each having a dynamic thrust system comprised of four H-34 helicopters, but with buoyant envelopes of different volumes (and hence buoyancies), and with varying percentage of helium inflation and varying useful loads (hence gross weights). Buoyancy ratio, B, was thus examined varying from approximately 0.44 to 1.39. For values of B greater than 1.0, the dynamic thrusters must supply negative thrust (i.e. downward).


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    Titel :

    Hybrid Lta Vehicle Controllability as Affected by Buoyancy Ratio


    Beteiligte:
    D. N. Meyers (Autor:in) / P. Kubicki (Autor:in) / T. Tarczynski (Autor:in) / A. Fairbanks (Autor:in) / F. N. Piasecki (Autor:in)

    Erscheinungsdatum :

    1979


    Format / Umfang :

    63 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Hybrid LTA vehicle controllability as affected by buoyancy ratio

    Meyers, D. N. / Kubicki, P. / Tarczynski, T. et al. | NTRS | 1979



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