| 摘要 |
The present invention relates to an arrangement in a rudder (1) intended for an aircraft or watercraft. The rudder is arranged at the trailing edge (3a) of a wing-shaped structure (3), extending largely in one plane (2), and capable of turning in either direction, as required, about the trailing edge (3a) in order to form angles with the plane (2). A front rudder part (4) is pivotably fixed to the trailing edge (3a) of the wing-shaped structure (3). Behind the said front part is a separately and pivotably fixed rear rudder part (5). The arrangement is characterised in that the rudder parts (4, 5) are operatively connected so that in an unturned position of the rudder (5) they form a rudder surface in the same main plane as the wing-shaped structure (3) and substantially continuous therewith. The arrangement comprises means for turning the rudder so as to impart both a backwards displacement to the rear rudder part (5) relative to the front rudder part (4) and a greater turning angle compared to the turning angle of the front rudder part (4), producing a flow gap (6) between front and rear rudder part (4 and 5). Turning of the rudder (1) is designed to be accomplished in a similar manner regardless of the selected turning direction. |
