着陆速度

救生伞垂直着陆速度限值的确定

The Determination of the Vertival Landing Speed Limit of Life Parachutes

跑道长度限制飞机的着陆速度。

The length of the runway restricts the landing speed of aircraft .

“通过伊朗国内航空专家，在跑到中间过快的着陆速度导致撞机。”部长在发布会上说。

" According to Iranian civil aviation authorities , the landing in the middle of the runway with excessive landing speed caused the crash ," the ministry said in a statement .

这种发动机将使飞机能从俄罗斯风格的滑跃式飞行甲板起飞并减小飞机的着陆速度和距离，这是对舰载飞机安全性的一种重要考虑。

The TVC would enable the fighter to take-off from a Russian-style ski-jumping flight deck and to reduce the aircraft 's landing speed , an important safety concern for carrier aircraft .

随着飞机重量增大、着陆速度提高和着陆环境趋于复杂，飞机的起降可靠性和安全性问题将更加突出。

With the increasing weight , landing speed and the more complicated landing environment , the issues of reliability and safety during aircraft taking off and landing will become more prominent .

飞机着陆下沉速度是起落架设计和飞机设计定型试飞的起落架强度检查中的最主要的参数之一。

The aircraft landing sinking speed is one of the major parameters during undercarriage design and undercarriage strength inspection of the aircraft design typing flight test .

并且希望着陆时的速度要快，时间要短。

And the landing speed is fast and time is short .

详细介绍了国外航天着陆器的应用情况，并对月球着陆器着陆速度进行了计算。

The application cases of the space landers in foreign countries are introduced in detail in this paper , and the landing speed of the lunar lander is calculated too .

实验模拟着陆的垂直速度为2～6m/s，水平速度0～4m/s，着陆姿态范围-19.5°～+195°，测定了飞行器模型的加速度和稳定性。

Acceleration and stability of vehicle models were tested in the range of 2 to 6 m / s vertical velocities , 0 to 4 m / s horizontal velocities and - 19.5 °~ + 19.5 ° landing attitudes .

据调查人员和行业安全专家称，如果一架正在着陆的飞机降落速度过快或者其降落轨道有偏离跑道入口的风险，驾驶舱内也应当会发出警报。

In the cockpit , according to investigators and industry safety experts , there also should have been alerts if a landing plane is descending too quickly or its trajectory threatens to take it short of the runway threshold .

通过对电磁气门驱动技术的研究进展分析，指出了电磁气门驱动走向实用化应解决气门软着陆、高响应速度及电磁气门驱动装置足够小等技术难题。

This paper introduces the present research situation of EVA , and points out some difficult technical problems which must be solved in the practical application of EVA such as the realization of the valve soft landing , higher responsive velocity and smaller size , etc.

机翼外形设计应使可重复使用运载器再入大气层以高超音速飞行和水平着陆时，满足配平、稳定性、升阻比、着陆速度等气动设计要求。

For this vehicle , the wing is sized to meet the re-entry aerodynamic requirements for hypersonic trim , stability , and lift-to-drag ratio , landing velocity .