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.

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。

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In the static strength analysis of helicopter blade, the traditional analysis method may lead to the uncertainty of the strength conclusion due to the inaccuracy of load calculation.

在直升机桨叶的静强度分析中，传统的分析方法可能会由于载荷计算的不准确，给强度结论带来不确定性。

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In this thesis, the aerodynamic load simulation of one type of helicopter airscrew is studied, and the system's structure and its mathematic model are analyzed.

论文结合实际的工程项目，以某型号直升机旋翼气动载荷模拟为研究内容，对加载系统的组成、系统数学模型进行分析和研究。

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It uses sensors on an unmanned helicopter to locate a load and pick it up automatically without having anyone on the ground.

ECONOMIST: Autonomous helicopters

Loheide marked a spot for the helicopter to land with a smoke grenade while still under fire and then helped to load up the casualties.

WSJ: Army soldier recovering from TBI gets Silver Star