A model of a heavy-lift helicopter makes its debuts at the Third China Helicopter Expo, which opened on Wednesday in Tianjin, a coastal city in north China. According to the information on the panel, this helicopter has a maximum take-off weight of 38.2 tons and a maximum cruising speed of 300 km/h. It is capable of flying at altitudes up to 5,700 meters and has a range of 630 km.(Huanqiu.com/Photo) |