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从60年代越南战争到90年代海湾战争,军用直升机在战争中的重要地位不容置疑。各军事大国竞相发展军用直升机。据统计,英、美、法、俄等国的军用直升机约占军用飞机总数的25％。而陆军拥有的直升机占军用直升机总数的60％。 军用直升机分为运输型直升机和攻击型武装直升机。近几年来以反坦克、空中格斗、地面火力支援的专用武装直升机倍受青睐。4～6吨起飞重量的专用武装直升机是研制发展的重点。正在研制的涡轴发动机以880～1050千瓦级的涡轴发动机最多。早期投入使用的T53系列逐渐改进后
From the Vietnam War in the 1960s to the Gulf War in the 1990s, the important position of military helicopters in the war can not be questioned. All military powers are competing to develop military helicopters. According to statistics, military helicopters in Britain, the United States, France, Russia and other countries account for about 25% of the total number of military aircraft. Army-owned helicopters account for 60% of the total number of military helicopters. Military helicopters are divided into transport helicopters and attack helicopter gunships. In recent years, special-purpose helicopter gunships, which are armed with anti-tank, aerial combat and ground firepower, have gained popularity. 4 ~ 6 tons takeoff weight of special helicopter gunships are the focus of development and development. Turboshaft engine is being developed to 880 ~ 1050 kW turboshaft engine up. Early T53 series put into use gradually improved