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新中国直升机一路沧桑走来9月5日~8日的第二届天津直升机博览会(以下称直博会)显示,中国直升机工业呈现出全面开花的态势。在此跃进腾飞之时,有必要先回顾一下新中国直升机工业发展的历史。新中国成立后,航空工业一边倒地引进了苏联技术和机型,直升机也不例外。早期大量仿制生产了源自苏联米-4直升机的7.6吨级直-5。该机技术老旧,活塞式发动机重量大、效率低,直升机振动和噪音极大,而且由于制造过程质量控制不到位,粗
New China Helicopter Came to the Vicissitudes The 2nd Tianjin Helicopter Expo (hereinafter referred to as Direct Expo) on September 5 to September 8 shows that the helicopter industry in China has shown a trend of full bloom. At this time of rapid growth, it is necessary to review the history of the new Chinese helicopter industry. After the founding of new China, the aviation industry brought the Soviet Union technology and models side by side, and the helicopter was no exception. A large number of early imitation produced from the Soviet-m-4 helicopter 7.6-ton straight -5. The aircraft technology is old, piston engine weight, low efficiency, helicopter vibration and noise great, and because of the manufacturing process quality control is not in place, crude