How many ways to go downhill? How many kinds of downhill equipment are there?

In China, glider locks are mostly used for aircraft landing, while the US military uses rope gliders, that is, gliders directly use ropes. In recent years, many troops in our country are also using it. The rope slipped down. It is dangerous to slide down the tourist rope, which is made of thick rope. If you make a mistake, you will be injured or killed like that unlucky guy in Black Hawk Down. Tourist ropes need thick heavy-duty sliding gloves and boots with wear-resistant pads, preferably wear-resistant and heat-resistant. The advantage of this method is that it does not need to untie the rope after falling, and it can directly enter the battle, shortening the hovering time of the helicopter. Use rope to lower the main lock, just use ordinary rope lowering gloves. The main lock is generally an eight-character ring. This method is relatively safer, because there is a rope wrapped around the main lock, and the friction heat is mainly concentrated on the main lock, which is not easy to wear people's clothes. But it takes more time to unlock the main lock from the winding rope after descending, so it takes more time than the sliding rope. Both have their advantages and disadvantages.