Inside a hanger at a Swiss airfield is the prototype of an aircraft (illustrated above) that does not use any fuel at all.

在瑞士一个机场的飞机库里面有一架完全不用燃料的飞机原型（如上图所示）。

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This Taranis prototype won't ever go into service, but will prove technologies and concepts for future aircraft, BBC reports.

BBC报道说，这架塔拉尼斯原型机不会投入服役，但会为未来的飞机检验技术和概念。

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Climbing during daylight hours, the prototype aircraft ultimately reached an altitude just short of 30, 000 meters, breaking records for non-rocket powered flight.

在白天爬升，原型机最终达到海拔30000米的高度，打破了非火箭动力飞行的高度纪录。

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The FAA's approval of the plan allows for limited test flights for two aircraft equipped with prototype versions of the battery fix.

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