论文部分内容阅读
直九系列是哈飞航空工 业股份有限公司研制、开发的双发中型多用途直升机,目前在国内军民用领域形成了一百余架的使用规模。在香港回归、国庆五十周年阅兵、北极科考等重大工程中表现非凡,并实现了国产直升机出口零的突破。 直-9目前已在军民用领域相继发展、派生出基本型、森林消防型、警用型、农业作
Straight nine series is Hafei Aviation Industry Co., Ltd. developed and developed double-launched medium-sized multi-purpose helicopters, the civil and military fields in the country has formed more than a hundred aircraft use scale. The return of Hong Kong, the 50th anniversary of the National Day parade, Arctic expedition and other major projects in the extraordinary performance, and achieved a zero domestic helicopter exports a breakthrough. Straight -9 has been in the military and civilian areas have been developed, derived from the basic type, forest fire type, police type, agriculture for