A vertical adjustable flap is mounted to the transom under the waterline of ship,by which the heading and attitude of ship can be adjusted in real time.

• 垂向可调尾板是设于某类型船舶尾封板水线以下,能实时调整该类型船舶航行姿态,使之在该航速下具有最佳阻力及运动性能的机构。