海洋环境对飞行的影响，主要指风浪和海洋气象的变化，它们不仅影响直升机飞行性能还将直接危及飞行的安全。
The oceanic environment means mainly changes of sea wave and marine meteorology. It directly affects flight performances of airplanes and harms their safety.
通过对上述结构参数、性能参数的调节，可确定合理、经济的飞行参数，保证安全、高效的完成直升机机外吊挂飞行运输任务。
Through adjusting the above structure and performance parameters, rational flight parameters can be decided, which can ensure the safe helicopter mission operations of the slung-load flight.
本文对直升机单发编队飞行执行某任务的基本条件，不同重量时单发飞行的飞行速度范围，特定重量的性能估算进行了简单的分析。
This paper simply analysed basic conditions and velocity range in various weights of helicopter formation flight in single engine operative and performance prediction in specific weight.
舰船空气尾流场是直升机舰上起降时的主要环境条件，对直升机的操稳性能及飞行安全有很大的影响。
The warship air-wake is a major environmental condition for the helicopter during take-off and landing from warship, which affects the helicopters control and stability and flight safety.
本实用新型提供一种飞行稳定、抗撞击性能强的遥控直升机。
The utility model provides a remotely piloted helicopter which is stable in flying and high in anti-impact performance.
本实用新型提供了一种起落、飞行稳定，抗撞击性能强的遥控直升机。
The remote control helicopter of the utility model has the advantages of stable rise, fall and flight and strong impact resistance performance.
本文以能量法研究直升机转弯机动飞行特性，这是评价一架直升机机动性能的基本要素之一。
The turning maneuver characteristics are one of the essential factors for evaluating the helicopter maneuver characteristics.
把飞行性能数据同标准性能数据，以评价直升机当前的飞行性能，并预测其变化趋势。
A compare between the simulation data and the standard data presented by the manufacturer is taken to evaluate the helicopter's current performance and predict the developing trend of the performance.
把飞行性能数据同标准性能数据，以评价直升机当前的飞行性能，并预测其变化趋势。
A compare between the simulation data and the standard data presented by the manufacturer is taken to evaluate the helicopter's current performance and predict the developing trend of the performance.
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