| 摘要 |
A helicopter with a rotor pivotally connected to a shaft by a universal joint or bail and socket joint. The helicopter Includes: a fuselage; a rotor mast that is fixed against relative rotation with respect to the fuselage; at least one blade; a motor for rotating the at least one blade; and a universal joint or ball and socket joint. The universal joint or bail and socket joint: (i) is disposed between the at least one blade and the rotor mast, with the at least one blade being rotatable relative to the universal joint or ball and socket joint; (ii) is disposed between the motor and the rotor mast; and (iii) is fixed against relative rotation with respect to the rotor mast, such that, pivoting of the universal joint or ball and socket joint causes the at least one blade and the motor to tilt. |
