Weight and cost estimating relationships, including additional parameters that influence the cost and performance of heavy-lift airships (HLA), are discussed. Inputs to a closed loop computer program, consisting of useful load, forward speed, lift module positive or negative thrust, and rotors and propellers, are examined. Detail is given to the HLA cost and weight program (HLACW), which computes component weights, vehicle size, buoyancy lift, rotor and propellar thrust, and engine horse power. This program solves the problem of interrelating the different aerostat, rotors, engines and propeller sizes. Six sets of 'default parameters' are left for the operator to change during each computer run enabling slight data manipulation without altering the program.


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    Titel :

    Weight and cost estimating relationships for heavy lift airships


    Beteiligte:
    Gray, D. W. (Autor:in)

    Kongress:

    Lighter-Than-Air Systems Technology Conference ; 1979 ; Palo Alto, CA


    Erscheinungsdatum :

    01.01.1979


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch





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