1–20 of 211 hits
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    XH-59A ABC Technology Demonstrator Altitude Expansion and Operational Tests

    A. J. Ruddell | NTIS | 1981
    Keywords: Helicopter rotors , Advancing blade concept

    Wind Tunnel Investigation of Rotor Lift and Propulsive Force at High Speed. Test Data Appendix

    F. Mchugh / R. Clark / M. Soloman | NTIS | 1977
    Keywords: CH-47 helicopter , Blade tips

      Wind Tunnel Investigation of Rotor Lift and Propulsive Force at High Speed: Test Data Appendix

      F. Mchugh / R. Clark / M. Soloman | NTIS | 1977
      Keywords: CH-47 helicopter , Blade tips

    Wind Tunnel Evaluation of a Model Helicopter Main-Rotor Blade With Slotted Airfoils at the Tip

    K. W. Noonan / W. T. Yeager / J. D. Singleton et al. | NTIS | 2001
    Keywords: Blade tips , Helicopter performance

    Wake Effects on Aeroelastic Stability of Hingeless and Bearingless Rotors

    Jeong, Min-Soo / Lee, In / Yoo, Seung-Jae et al. | AIAA | 2013
    Keywords: Helicopter Rotor , Hingeless Rotor Blade

    Visualization of Pressure and Skin-Friction Fields on Rotating Blade Under Low-Pressure Conditions

    Nagata, Takayuki / Sato, Hitomi / Okochi, Masaki et al. | AIAA | 2022
    Keywords: Helicopter Blade

    Vibration reduction of helicopter with trailing-edge flaps at various flying conditions

    Kodakkattu, SK / Joy, ML / Prabhakaran Nair, K | SAGE Publications | 2017
    Keywords: helicopter vibration , rotor blade

    Variable-Fidelity Methodology for the Aerodynamic Optimization of Helicopter Rotors

    Wilke, Gunther | AIAA | 2019
    Keywords: Helicopter Rotor , Blade Element Theory

    Variable Diameter Rotor Study

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

    Validation of the Steady-State Hover Formulation for Accurate Performance Predictions

    Fitzgibbon, T. A. / Woodgate, M. A. / Jimenez-Garcia, A. et al. | AIAA | 2019
    Keywords: Blade Element Momentum Theory , Helicopter Rotor

    Use of a Portable Programmable Guidance Display in Support of Helicopter Noise Testing

    W. A. Decker / G. E. Tucker / I. E. Moralez et al. | NTIS | 2007
    Keywords: Helicopter noise testing , Bvi(Blade vortex interaction)

    Transient Loads Control of a Variable Speed Rotor During Lagwise Resonance Crossing

    Han, Dong / Wang, Joseph / Smith, Edward C. et al. | AIAA | 2012
    Keywords: Helicopter Blade

    Tip-Vortex Investigation on a Rotating and Pitching Rotor Blade

    Goerttler, Andreas / Braukmann, Johannes N. / Schwermer, Till et al. | AIAA | 2018
    Keywords: Helicopter Blade , Blade Vortex Interaction

    Tip Vortex Control via a Tab Deflecting at Higher Harmonic Frequencies

    Lee, T. / Pereira, J. | AIAA | 2008
    Keywords: Blade Vortex Interaction , Helicopter Rotor

    Tip Aerodynamics and Acoustics Test: A Report and Data Survey

    J. L. Cross / M. E. Watts | NTIS | 1988
    Keywords: Blade tips , AH-1G helicopter

    Time Domain Analysis of a Rigid Two-Bladed Fully Gimballed Helicopter Rotor with Circulation Control

    P. S. Montana | NTIS | 1983
    Keywords: Helicopter rotors , Blade tips

    Thickness Noise of Helicopter Rotors a High Tip Speeds

    F. Farassat / R. J. Pegg / D. A. Hilton | NTIS | 2004
    Keywords: Helicopter rotors , Blade tips

    The phenomenon of helicopter rotor blade sailing

    Newman, S | SAGE Publications | 1999
    Keywords: helicopter , blade sailing

    Theoretical Analysis of the Tip Relief Effect on Helicopter Rotor Performance

    J. M. LeNard | NTIS | 1972
    Keywords: Helicopter rotors , Blade airfoils