1–20 von 60 Ergebnissen
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    Helicopter Non-Unique Trim Strategies for Blade-Vortex Interaction (BVI) Noise Reduction

    Malpica, Carlos / Greenwood, Eric / Sim, Ben W. | NTRS | 2016
    Schlagwörter: Blade-Vortex Interaction , Helicopter

    Tests of Full-Scale Helicopter Rotors at High Advancing Tip Mach Numbers and Advance Ratios. Technical Report

    J. C. Biggers / J. I. L. McCloud / R. H. Stroub | NTIS | 2015
    Schlagwörter: Helicopter rotors , Blade radius

    A summary of hingeless-rotor structural loads and dynamics research.

    Ward, J. F. | NTRS | 1966
    Schlagwörter: HELICOPTER ROTOR , ROTOR BLADE

    Comparison of Flight Measured Helicopter Rotor Blade Chordwise Pressure Distributions and Two-Dimensional Airfoil Characteristics

    Kelley, H. L. / Scheiman, J. | NTRS | 1963
    Schlagwörter: HELICOPTER ROTOR , ROTOR BLADE

    Full-scale-tunnel Performance Tests of the PV-2 Helicopter Rotor

    Migotsky, Eugene | NTRS | 1945
    Schlagwörter: PROPELLERS, HELICOPTER - PERFORMANCE , AIRFOILS - NACA 0012 6 ROTOR-BLADE , PROPELLERS, HELICOPTER - P-V ENG FORUM 2

    Static-thrust Investigation of Full-scale PV-2 Helicopter Rotors Having NACA 0012.6 and 23012.6 Airfoil Sections

    Lipson, Stanley | NTRS | 1946
    Schlagwörter: PROPELLERS, HELICOPTER - THRUST, STATIC , AIRFOILS - NACA 0012 6 ROTOR BLADE , PROPELLERS, HELICOPTER - P-V ENG FORUM 2 , AIRFOILS - NACA 23012 6 ROTOR BLADE

    In Vestigation on the Blade Deflection of a Helicopter

    M. Marchand | NTIS | 1966
    Schlagwörter: Blade , Tandem-rotor helicopter , Helicopter

    The Effect of Icing During Helicopter Ground Run-Up

    R. D. Price / J. R. Stallabrass | NTIS | 1967
    Schlagwörter: Helicopter , Blade

    MBB BO 108 Helicopter Ground and Flight Test Evaluation

    D. Schimke / B. Enenkl / E. Allramseder | NTIS | 1989
    Schlagwörter: Blade slap noise , Helicopter design , Helicopter tail rotors , Helicopter performance

    Full-scale Investigation of the Blade Motion of the PV-2 Helicopter Rotor

    Migotsky, Eugene | NTRS | 1948
    Schlagwörter: AIRFOILS - NACA 0012 6 - ROTOR-BLADE , PROPELLERS, HELICOPTER - P-V ENG FORUM 2

    Performance Evaluation of an OH-58A+ With Dimpletape Installed

    G. A. Deetman | NTIS | 2001
    Schlagwörter: Helicopter rotors , Oh-58a+ helicopter rotor blade

    Helicopters Calculation and Design. Volume I - Aerodynamics

    A. S. Braverman / L. N. Grodko / M. A. Leykand et al. | NTIS | 1967
    Schlagwörter: Helicopter design , Blade , Helicopter

    Variable Diameter Rotor Study

    A. W. Linden | NTIS | 1972
    Schlagwörter: Helicopter rotors , Telescoping blade rotors , Rigid blade rotors , Folding blade rotors , Flexible blade rotors

    Calculation of Helicopter Rotor Blade/Vortex Interaction by Navier-Stokes Procedures

    Y. Kim / S. J. Shamroth / R. C. Buggeln | NTIS | 1987
    Schlagwörter: Helicopter design , Blade tips , Blade-vortex interaction

    Predesign Study for a Modern 4-Bladed Rotor for Rsra

    S. J. Davis | NTIS | 1981
    Schlagwörter: H-60 helicopter , Blade tips

    Effect of Rotor Blade Root Cutout on Vertical Drag

    S. J. Cassarino | NTIS | 1970
    Schlagwörter: Helicopter rotors , Rotor blade root cutouts