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据报道,美国防部高级研究计划局公布了一种新概念飞行器——无人机的设想方案,预计在2018年进行飞行试验。无人机将采用垂直起降的方式,以741 km/h的速度飞行,能够在一些没有跑道的地方着陆。其外形看上去就像是一个双翼机,但是起飞方式又像是直升机,结合了两者的特点。目前美国国防部已经拨款了8 900万美元用于无人机的研发,位于弗吉尼亚的极光飞行科学研究院正在进行验证机试验,准备打造一个原型机进行
According to reports, the US Defense Advanced Research Projects Agency announced a concept of a new concept aircraft - UAV scenario, is expected in 2018 flight test. The UAV will fly vertically at 741 km / h and land on some runways. Its appearance looks like a biplane, but the take-off is like a helicopter, a combination of the two characteristics. At present, the U.S. Department of Defense has allocated $ 89 million for research and development of unmanned aerial vehicles. The Aurora Flight Research Institute in Virginia is conducting a pilot test to prepare a prototype aircraft