在西方,有人给单翼吊座式滑翔机装上一台微型发动机(20马力左右)和一个小螺旋桨(直径1.5米左右),便成为所谓的灵巧飞机。这种飞机重约100公斤,机翼由空心的钛铝合金管蒙上塑料布而成,除了可以做滑翔机的动作外,它的活动范围比滑翔机大,速度也快得多,一般时速达100公里以上。运动员完全暴露在空气中,因此,灵巧飞行运动与胆小的人是无缘的。这种改装的滑翔机最先出现在七十年代初期,如今,全世界每年投资制造灵巧飞机的钱达三千多万美元。美国尤为突出,它有40家公司搞这类飞机,已生产了一万八千 In the West, a single-wing hang glider fitted with a miniature engine (around 20 hp) and a small propeller (about 1.5 meters in diameter) was called a smart aircraft. This aircraft weighs about 100 kg, the wing made of hollow titanium alloy coated with plastic sheeting, in addition to doing glider action, its range of activities than the glider, the speed is much faster, the general speed of 100 Km above. The athlete is completely exposed to the air, so dexterous flight movements are timid to the timid. This modified glider first appeared in the early 1970s, and now the world invests more than 30 million U.S. dollars each year in clever aircraft. The United States is particularly prominent. It has 40 companies engaged in such aircraft and has produced 18,000