Equipment is the lightest among the very light air vehicles. Since it is easy to carry it, take-off can be made from hills without roads. It does not need a special rise take-off and landing area. It can stay in the air for hours with natural escalating forces, reach till the clouds and go for very long distances, It is the most common and rapidly developing aviation sport. Since its parachute is very small and light, and can be put in a backpack, some climbers use it to go down from the mountain summits,