tow release knob
/ˈtəʊ ɹɪlˈiːs ˈnɒb/
n
English · tow release knob中文 · 牵引释放旋钮Español · liberador del cable de remolqueFrançais · commande de largage de câble
意味：Lever used to release the tow cable connecting the glider to the tow plane that brings it aloft.