Global Hawk made a record of 19.928km absolute altitude.
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送交者: steven 于 2009-11-13, 12:15:21:
回答: 修改一下在空气非常稀薄的高空，飞机如何飞的？不是要排压缩空气吗？ 由 coubert 于 2009-11-13, 11:55:11:
It has very very long wingspan. The Turbofan engine has a very large in-take, and an unusual 14 stage compressor. Go figure.
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