据报道这种无人机可以在18000米的高空不分昼夜的连续飞行32小时，且可以透过云层监视地面像鞋盒那么大小的目标。 它飞行的这一高度几乎是民航客机巡航高度的两倍。

It can gather data on objects reportedly as small as a shoebox, through clouds, day or night, for 32 hours from 18,000 metres—almost twice the cruising altitude of passenger jets.

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总垂直误差(TVE)：航空器实际飞行的气压高度和指定的气压高度(飞行高度层)之间的垂直几何差值。

Total Vertical Error (TVE) : Vertical geometric difference between barometric altitude in actual flight of aircraft and designated barometric altitude (flight level).

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巡航高度，在航线上水平飞行期间，飞机所保持的高度或飞行高度层。

CRUISE altitude, An altitude or flight level maintained during enroute level flight.

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