Performance calculations were conducted for 146,600 lb conventional and quad tilt-rotors, which are to cruise at 300 kt at a 4000 ft=95 F condition. Aerodynamic interference effects on the aircraft cruise performance were quantified. Aerodynamic interference improves the aircraft lift-to-drag ratio of the baseline conventional tilt-rotor. However, interference degrades the aircraft performance of the baseline quad tilt-rotor, mostly due to the unfavorable effects from the front wing to the rear wing. A parametric study was conducted to understand the effects of design parameters on the performance of the aircraft. A reduction in rotor tip speed increased the aircraft lift-to drag ratio the most among the design parameters investigated.


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    Titel :

    Performance and Design Investigation of Heavy Lift Tilt-Rotor with Aerodynamic Interference Effects


    Beteiligte:
    H. Yeo (Autor:in) / W. Johnson (Autor:in)

    Erscheinungsdatum :

    2009


    Format / Umfang :

    10 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch