HELICOPTER WITH STABILATOR DETUNED IN ANTISYMMETRIC VIBRATION MODES FROM MAIN ROTOR WAKE EXCITATION FREQUENCY

摘要

HELICOPTER WITH STABILATOR DETUNED IN ANTISYMMETRIC VIBRATION MODES FROM MAIN ROTOR WAKE EXCITATION FREQUENCY A helicopter stabilator having naturally high response to the main rotor wake excitation frequency in roll and yaw stabilator vibratory modes is selectively mounted so as to be detuned therefrom in antisymmetric stabilator vibratory mode without adversely affecting symmetric stabilator vibratory modes, stabilator vertical stiffness, or stabilator pitch stiffness.