| 摘要 |
<p>Aerofoil surfaces such as wing (10), tailplanes, rudders, etc may be mounted to an aircraft for rotation about axes (12) normal to the longitudinal axis of the aircraft and such that the centre of pressure (p) of the aerofoil surface is rearward of the axis of rotation. Bias means such as springs (15) urge the aerofoil towards a central position while permitting limited rotation of the aerofoil in response to aerodynamic forces. Conventionally controlled surfaces such as canard wings (25) or canard rudders, initiate directional changes.</p> |
