What is the purpose of the slot on a wing?

Left wing of TU 154M model Configuration for startlanding: slots and wing slot
➡️【Mk.com】✅Play online casino slots✅, blackjack, roulette and live casino! New customers get a 60 free spins welcome bonus...✅  Wings Edit Wings Fledgling Wings Demon Wings Angel Wings Fin Wings Sparkly Wings When a wing is placed in a social slot and another is placed in an wings138 slot This mod adds a dedicated wing slot near the armor and accessories page of the inventory Updated with permission from original author abluescarab Usage

wing888 slot Wing from Automobile without the AIRPLANE RIGHTS ITSELF WITH SAFETY SLOT An automatic slotted wing , which , without any assistance on the part of a pilot