HELICOPTER.

摘要

A cabin (1) of a helicopter is structurally separated from the body (2) of the helicopter, and a spring (6) and an actuator (7) are combined with the body (2) of the helicopter to support the cabin. High frequency vibrations constituting a high frequency component of revolutions of a rotor, which gives the most uncomfortable ride in the helicopter, are absorbed by a soft spring, and resonance of the spring and rotor revolution is actively suppressed by the actuator whereby vibrations are removed from the cabin over a wide range of frequency to give a comfortable ride in the helicopter. <IMAGE>