www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

   

WORLD / America

Shuttle launch a 'go' despite problem
(AP)
Updated: 2006-07-04 14:37

Fischbeck, who has consulted with NASA on the shuttle's delicate heat protection system, wondered why foam had broken off on the launch pad. "It's something you might want to understand before you launch," he said.

The patch of foam fell off an area that covers an expandable bracket holding a liquid oxygen feed line against the huge external tank. NASA engineers believe ice built up in that area from condensation caused by rain Sunday.

The tank expanded when the super-cold fuel was drained after Sunday's launch was canceled because of the weather. The ice that formed "pinched" some of that foam, causing the quarter-inch-wide crack and the piece of foam to drop off, officials said.

The size of the fallen foam was less than half the size of one that could cause damage, NASA officials said.

NASA managers decided to go ahead with the launch attempt because of three criteria: They are confident enough foam still is on the bracket to prevent a large piece of ice from forming; that the area of foam where the piece dropped was still intact; and they don't believe the area will be exposed to extreme heat during ascent.

Inspectors spotted the crack in the foam insulation during an overnight check of the shuttle. NASA had scrubbed launch plans Saturday and Sunday because of weather problems.

The forecast for a Tuesday liftoff was better than previous days, with just a 40 percent chance that storm clouds would prevent liftoff.

Griffin decided last week that the shuttle should go into orbit as planned, despite the concerns of two top agency managers — including the top safety officer — who wanted additional repairs to the foam insulation.

But the two agency officials said the foam loss will not threaten the crew because NASA has a plan for the astronauts to move into the international space station if in-orbit inspections find is serious damage to the spacecraft. The crew would await rescue 81 days later by second space shuttle.

The mission for Discovery's crew this time is to test shuttle-inspection techniques, deliver supplies to the international space station and drop off European Space Agency astronaut Thomas Reiter for a six-month stay.


Page: 12
 
 

主站蜘蛛池模板: 亚洲九九夜夜 | 日本精品久久久久中文字幕 1 | 精品综合 | gv手机在线观看 | 亚洲视频免费观看 | 亚洲夜夜爽 | 国产伦久视频免费观看视频 | 泰国情欲片寂寞的寡妇在线观看 | 国产精品亚洲一区二区三区在线观看 | 久热色 | 久久久久久久99视频 | 日本视频在线观看不卡高清免费 | 美女视频永久黄网站免费观看国产 | 国产成人高清视频在线观看免费97 | 欧美日韩视频在线 | 亚洲精品国产一区二区三区四区 | 日本手机在线视频 | 国产精品免费视频一区 | 综合久久久久久中文字幕 | 久久久综合久久 | 九九热国产精品视频 | 亚洲高清成人欧美动作片 | 久久久日韩精品国产成人 | freesexvideo性欧美tv2021 | 中文字幕视频在线观看 | 亚洲欧美日韩精品久久亚洲区 | 欧美在线视频免费 | 精品亚洲成a人在线观看 | 国产1级片 | 国产女人伦码一区二区三区不卡 | 久久99在线| 中文字幕成人免费高清在线视频 | 手机国产日韩高清免费看片 | 最新精品国产 | 精品国产无限资源免费观看 | 日本亲子乱子伦视频 | 国产精品免费_区二区三区观看 | 国产一级淫片a免费播放口之 | avav在线看 | 一级特黄特黄的大片免费 | 三级黄色片日韩 |