A a vertical takeoff aircraft is one that can rise straight from the ground.
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2. 垂直起飞的飞机，不用助跑就可直接从地上升起。
A vertical take-off aircraft can rise straight from the ground, without running along for some distance.
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3. 在限定的时间内，参赛队伍必须让他们的飞行器垂直起飞，成功地控制飞行和降落，然后返回。
Against a tight timeline, the teams must prepare their vehicles to make vertical take-offs, controlled flights and successful landings-and then hop back home again.
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4. 由降落区内将直升机垂直起飞，保持稳定的上升速度，上升的过程中允许轻微的横向偏移。
The take-off should be performed straight up from the landing area, at a constant rate of climb, with little lateral deviations.
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5. 环翼机没有尾翼，而是采用一个延伸的圆形作为外部引擎，帮助飞机完成水平飞行和垂直起飞降落。
Instead of using wings, the coleopter employed a circular extension serving as the outer part of the jet engine while helping the aircraft achieve level flight, as well as vertical ascent and landing.
A large amount of practical measurement and calculated drift data of rocket shows that the models are suitable for describing and analyzing drift of rocket in takeoff phase.
When the plane tries to take off vertically, the Pegasus engine's four jettube will turned to face the ground so that the whiff will raise the aircraft.
The analytical model of separation is presented for the parallel Space Shuttle system with the perpendicular launch. Meanwhile, the important problems of the secure separation are presented.
The smaller the bird, for example, the more agile the flying — a swan may need the equivalent of two football fields to take off and get lift, while a hummingbird can rise like a helicopter.
The smaller the bird, for example, the more agile the flying — a swan may need the equivalent of two football fields to take off and get lift, while a hummingbird can rise like a helicopter.
