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美航天局推迟商业载人飞船首次试飞时间

2019-02-07 15:31:00    新华网

新华社华盛顿2月6日电(记者周舟)美国航天局6日公布了商业载人飞船试验性飞行的最新时间表,其中美国太空探索技术公司“龙”飞船的首次不载人试飞推迟到3月2日,而波音公司“星际客机”飞船的首次不载人试飞将不早于今年4月。

美国航天局说,做出这些调整有助于完成必要的硬件测试、数据验证以及飞行控制员和任务主管人员的训练等。

按原计划,太空探索技术公司应于今年1月7日使用“猎鹰9”火箭从佛罗里达州肯尼迪航天中心将不载人“龙”飞船送入太空,测试火箭、飞船、地面系统的性能以及在轨飞行、对接和着陆操作,以验证这家私企的载人系统能否最终安全载人往返国际空间站。

“龙”飞船的载人试飞原定于今年6月进行。但依照最新时间表,这一任务将相应推迟1个月执行。

美国航天局说,波音将在不早于4月使用“宇宙神5”型火箭执行“星际客机”飞船的不载人试飞任务,这也比原计划推迟约1个月。“星际客机”的载人试飞仍定于原计划的8月进行。

2011年美国航天飞机退役后,美国运送宇航员往返国际空间站全部“仰仗”俄罗斯飞船。为改变这一尴尬局面,美国大力发展商业载人航天。2014年,波音和太空探索技术公司从美国航天局获得总计68亿美元的合同,分别建造“星际客机”载人飞船和载人版“龙”飞船,但两艘飞船的首飞时间从最初计划的2017年一再推迟。

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