| 摘要 |
A system for trimming, steering and braking a watercraft includes a retractable plate or flap disposed on each lateral side of the hull of the watercraft. Each flap is extendible into the water, rearwardly in a continuously adjustable manner, and independently of the extension of the other flap. When the flap is fully extended then its angular position relative to the hull is also continuously adjustable independently of the angular positioning of the other flap. The flaps in their fully declined position act as powerful brakes for the watercraft. Differential extension of the flaps or differential adjustment of their relative angular positions on the two sides of the watercraft results in trimming and steering of the watercraft.
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