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    Exploratory flight investigation and analysis of structural loads encountered by a helicopter hingeless rotor system

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

    Response of a helicopter rotor to oscillatory pitch and throttle movements

    Carpenter, Paul J / Peitzer, Herbert E | NTRS | 1949
    Schlagwörter: AIRFOILS - NACA 23015 HELICOPTER , ROTOR BLADES - OSCILLATIONS , ROTOR BLADES, HINGED , HELICOPTER TOWERS - NACA , ROTORS, HELICOPTER

    RESULTS OF SOME WIND TUNNEL AND FLIGHT STUDIES WITH HELICOPTERS AT NASA

    Huston, R. J. / Tapscott, R. J. | NTRS | 1963
    Schlagwörter: HELICOPTER ROTOR , ROTOR SYSTEM

    Hovering and Low-speed Performance and Control Characteristics of an Aerodynamic-servocontrolled Helicopter Rotor System as Determined on the Langley Helicopter Tower

    Carpenter, Paul J / Paulnock, Russell S | NTRS | 1950
    Schlagwörter: PROPELLERS, HELICOPTER - PERFORMANCE , ROTOR BLADES - TWIST , CONTROLS, HELICOPTER , ROTOR BLADES - PITCH , HELICOPTER TOWERS - NACA

    RESULTS OF WIND-TUNNEL MEASUREMENTS ON A HELICOPTER ROTOR OPERATING AT EXTREME THRUST COEFFICIENTS AND HIGH-TIP-SPEED RATIOS

    Jenkins, J. L., Jr. / Sweet, G. E. | NTRS | 1963
    Schlagwörter: HELICOPTER ROTOR , ROTOR AERODYNAMICS

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

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

    The changing helicopter.

    Gessow, A. | NTRS | 1967
    Schlagwörter: MILITARY HELICOPTER , ROTOR SYSTEM , HELICOPTER DESIGN

    A theoretical analysis of elastic vibrations of fixed-ended and hinged helicopter blades in hovering and vertical flight

    Morduchow, Morris | NTRS | 1950
    Schlagwörter: ROTOR BLADES - VIBRATION , EQUATIONS - PROPELLERS, HELICOPTER , PROPELLERS, HELICOPTER - BALANCING , ROTOR BLADES - BENDING & TORSION , FLUTTER - PROPELLERS, HELICOPTER , ROTOR BLADES - FLAPPING , PROPELLERS, HELICOPTER - VIBRATION

    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

    Theoretical analysis of oscillations in hovering of helicopter blades with inclined and offset flapping and lagging hinge axes

    Morduchow, M / Hinchey, F G | NTRS | 1950
    Schlagwörter: ROTOR BLADES - STABILITY , ROTOR BLADES - OSCILLATIONS , ROTOR BLADES, HINGED , PROPELLERS, HELICOPTER , ROTOR BLADES - FLAPPING

    HELICOPTER DESIGN IMPROVEMENTS POSSIBLE WITH LOW DISC LOADING CONCEPT RETAINED

    Gustafson, F. B. | NTRS | 1962
    Schlagwörter: HELICOPTER DESIGN , ROTOR DISK

    An analytical study of the steady vertical descent in autorotation of single-rotor helicopters

    Nikolsky, A A / Seckel, Edward | NTRS | 1949
    Schlagwörter: ROTOR BLADES , PROPELLERS, HELICOPTER

    WIND-TUNNEL MEASUREMENTS OF PERFORMANCE, BLADE MOTIONS, AND BLADE AIR LOADS FOR TANDEM-ROTOR CONFIGURATIONS WITH AND WITHOUT OVERLAP

    Huston, R. J. | NTRS | 1963
    Schlagwörter: TANDEM-ROTOR HELICOPTER

    Hovering performance characteristics of a rotor with and without blade-pitch servo-control flaps

    Shivers, J. P. | NTRS | 1967
    Schlagwörter: HELICOPTER ROTOR

    CONSIDERATIONS OF METHODS OF IMPROVING HELICOPTER EFFICIENCY

    Dingeldein, R. C. | NTRS | 1960
    Schlagwörter: HELICOPTER ROTOR , HELICOPTER DESIGN

    Comparisons of methods of computing bending moments in helicopter rotor blades in the plane of flapping

    Luecker, Arthur R | NTRS | 1945
    Schlagwörter: PROPELLERS, HELICOPTER , ROTOR BLADES - BENDING MOMENTS , ROTOR BLADES - FLAPPING

    HOVERING CHARACTERISTICS OF A ROTOR HAVING AN AIRFOIL SECTION DESIGNED FOR AUTILITY TYPE OF HELICOPTER

    Monahan, W. J. / Shivers, J. P. | NTRS | 1962
    Schlagwörter: HELICOPTER , ROTOR

    Stability characteristics of a tandem-rotor transport helicopter as determined by flight test

    Kelly, J. R. / Winston, M. M. | NTRS | 1965
    Schlagwörter: TANDEM-ROTOR HELICOPTER

    RESULTS OF WIND-TUNNEL MEASUREMENTS ON A HELICOPTER ROTOR OPERATING AT EXTREME THRUST COEFFICIENTS AND HIGH-TIP-SPEED RATIOS

    Jenkins, J. L., Jr. / Sweet, G. E. | NTRS | 1963
    Schlagwörter: HELICOPTER ROTOR

    Flight Investigation of Effects of Rotor-blade Twist on Helicopter Performance in the High-speed and Vertical-autorotative-descent Conditions

    Gessow, Alfred | NTRS | 1948
    Schlagwörter: AIRFOILS - NACA 23015 HELICOPTER , ROTOR BLADES - TWIST , PROPELLERS, HELICOPTER

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