Скорост лети крила GIN
Speed flying (also known as speed riding) is the air sport of flying a small, fast fabric wing, usually in close proximity to a steep slope.Speed flying and speed riding are very similar sports; speed flying is when the speed wing is foot-launched, while speed riding (or ski gliding) is a winter sport done on skis. Sustained flight with a speed glider is possible over a ridge in strong winds.