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SpaceX星际飞船超级重型助推器7部发动机同时点火_我的网站

一 |     9月20日消息，当地时间周一，SpaceX在对星际飞船系统原型的7号超级重型助推器进行静态点火测试时，首次同时启动7部猛禽发动机，这也是公司同时启动火箭发动机数量最多的一次测试。星际飞船是高度有50米的可重复使用航天器，将由70米长、搭载33部猛禽发动机的超级重型助推器送入轨道。SpaceX最近一直在测试7号助推器，为计划中的星际飞船系统首次轨道飞行做准备。

二 |     LONDON -- Thousands of travelers faced disruption as all flights were suspended on Wednesday at London's Luton airport after a fire tore through a newly built parking garage, destroying vehicles and partially collapsing the structure.Four firefighters and an airport employee were treated in hospitals for smoke inhalation after the fire, which erupted on Tuesday evening.All flights were suspended until at least 3 p.m. on Wednesday, the airport said in a statement, and would-be passengers were asked to stay away because emergency crews were still on the scene.Luton, about 56 kilometers (35 miles) north of central London, is a hub for easyJet, Ryanair and other budget airlines running flights to destinations in the United Kingdom and Europe.Some passengers had to wait at the nearby railway station because the airport was closed.Nikodem Lesiak, a university student trying to return to Poland, said he had spent the night at the station.“When we got here, we found out Luton is burning and everything is closed, and we were supposed to have our flight at 7:50 today but it was cancelled," he said.Video posted on social media and on the websites of British news outlets showed police and fire department vehicles gathered outside a multi-story parking structure where the top level was engulfed in flames. The parking garage for Terminal 2 partially collapsed.In addition to the five people hospitalized, a sixth person was treated at the scene.Bedfordshire Fire and Rescue Service said its crews were “monitoring the smoldering remains” on Wednesday morning. Chief fire officer Andrew Hopkinson said the blaze is thought to have started with a diesel vehicle, and the recently opened parking garage did not have sprinklers.Authorities said they don't believe the blaze was started intentionally.Russell Taylor, 41, an account director from Kinross in Scotland, saw the flames after flying in to Luton from Edinburgh. He told the PA news agency that he first saw a couple of fire engines with a car on fire on an upper level. "A few minutes later, most of the upper floor was alight, car alarms were going off with loud explosions from cars going up in flames," he said. "The speed in which the fire took hold was incredible.”。在周一顺利完成发动机静态点火测试之后，SpaceX创始人兼首席执行官埃隆·马斯克（Elon Musk）在社交媒体Twitter上表示，所有7部猛禽发动机的燃烧室压力“看起来都很正常。”在随后的一条Twitter中，马斯克表示，“7号助推器现在返回高舱进行系统稳健性升级，8号助推器将移动到发射台继续进行测试”。他还补充说，公司下一次星际飞船系统原型大型测试将是“全堆栈发射前状态合练，然后在几周内同时启动33部发动机。

三 | ”马斯克所说的“全堆栈”包括位于超级重型助推器顶部的星际飞船，它们共同构成了世界上最高的火箭，总高有120米。SpaceX最近完成的这次发动机静态点火测试是8月31日火箭发动机点火数量的两倍。

四 | 在那次对超级重型助推器进行静态点火测试时，SpaceX启动了三部猛禽发动机，这也是公司首次对超级重型助推器上搭载的多部发动机同时进行静态点火测试。此前，SpaceX曾在8月9日的一次静态点火测试中同时启动星际飞船6部猛禽发动机中的2部。SpaceX还没有公布对星际飞船系统进行全栈测试的预计日期。但公司表示，它的目标是在未来几个月内对飞船原型进行首次轨道测试。

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Published on:02:38:26