I use an ordinary, wide-bladed rudder that's fastened to the rear of the sternpost and worked by a wheel and tackle.
我使用普通的舵,舵上还有宽阔的副舵,装在船尾,用机轮和滑车转动。
英语百科
Sternpost
A sternpost is the upright structural member or post at the stern of a (generally wooden) ship or a boat, to which are attached the transoms and the rearmost left corner part of the stern.
The sternpost may either be completely vertical or may be tilted or "raked" slightly aft. It rests on or "fays to" the ship's keel.