欧直公司认为它的设计能够使直升机增加约50%的飞行速度和飞行里程，而且并不用付出多大代价。
Eurocopter believes its design could give a helicopter around 50% more speed and range, and not at a huge cost.
1月20日一架欧直“小狐”AS550直升机在巴西里约热内卢州新富丽堡坠毁，三名巴西陆军士兵幸运地逃脱。
Three Brazilian army crew members had a lucky escape when their Eurocopter AS550 Fennec helicopter crashed in Nova Friburgo on 20 January.
并以欧拉方程为基础，结合动态入流模型，计算了某型无人直升机的操纵响应特性。
On the basis of Euler equation, the control response characteristics of a kind of unmanned helicopter is calculated incorporating dynamic inflow model.
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