Rudder for speedboat, has inner end of lever pivotally mounted inside rowlock at distance from fixed part of four bar linkage

摘要

The inner end of the lever (1) is pivotally mounted inside the rowlock (9) at a distance of 2-20 cm from the fixed part (10) of the four-bar linkage, outside the linkage surface. The outer end of the lever is attached to the blade (2). The lever is mounted between the two slide actuators (4, 5) in a four-bar linkage.