A saw-tooth profile to the Gurney flap (red arrow) adds downforce, but also helps in detaching the airflow as it leaves the exit profile of the flap.

• 一个锯齿形的剖面附在尾翼的床轮処（红色箭头処）来增加下压力，也帮助在关闭尾翼的剖面的同时分离气流。