As an officer in the U. S. Air Force, Kittinger was involved in very high-altitude research that helped pave the way for manned space travel.

作为一个在美国空军军官，基廷格是非常高的海拔参与研究，帮助铺平了道路载人太空旅行。

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As an officer in the U. S. Air Force, Kittinger was involved in very high-altitude research that helped pave the way for manned space travel.

作为一个在美国空军军官，基廷格是非常高的海拔参与研究，帮助铺平了道路载人太空旅行。

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