日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

US EUROPE AFRICA ASIA 中文
China / Society

Bluefin ends first mission in flight hunt prematurely

By China Daily (China Daily) Updated: 2014-04-16 07:07

30 percent of initial search area covered, but nothing is found

The autonomous underwater device Bluefin-21, which was deployed on Monday for its first search mission for MH370, faced unexpected depths and ended its mission prematurely, US navy Captain Mark Matthews said on Tuesday.

Matthews said the Bluefin was launched at 5:20 pm (0920 GMT) and was recovered at 1 am (1700 GMT) on Tuesday, Xinhua News Agency quoted him as saying.

Of the 40 square kilometers of search area initially planned for its first mission, 30 percent had been covered. But no discovery related to the Malaysian flight was made, said Matthews.

MH370, carrying 239 passengers and crew members, including 154 Chinese people, vanished en route from Kuala Lumpur to Beijing on March 8. The multinational search led by Australia has since focused on the plane's black box data recorders.

"The area where the Bluefin was programmed for searching ranges from a depth of 4,200 to 4,400 meters, according to the chart. How the Bluefin was programmed to maintain an altitude over the sea floor of 30 meters. Unexpectedly, we

Bluefin ends first mission in flight hunt prematurely

encountered an area that was deeper than 4,500 meters, and if the Bluefin would have followed its directions, it would have exceeded its maximum operating depth," Matthews said.

The Joint Agency Coordination Center in Perth, which is guiding the search, said on Tuesday that after completing about six hours of its mission, Bluefin-21 exceeded its operating depth limit of 4,500 meters and its built-in safety feature returned it to the surface.

Matthews said the device has been reprogrammed with better instructions to prevent a similar mission abort and to keep it operating within its operating limits.

It was set for a second sweep of the seabed on Tuesday.

From the data gathered by Bluefin, searchers had been made aware that the conditions of the sea floor are "relatively barren" with only a few rocks.

Matthews emphasized that this is a normal operating condition and the operators had worked with such an environment before.

Bluefin-21 could take up to two months to scour a 600-sq-km area where MH370 is believed to have ended up, Reuters quoted US search authorities as saying on Tuesday.

Xinhua and Reuters contributed to this story.

(China Daily 04/16/2014 page4)

Highlights
Hot Topics
...
主站蜘蛛池模板: 国产成人av一区二区三区 | 69综合网 | 国产又粗又猛又爽又黄 | 欧美日韩在线视频观看 | 免费91看片 | 久久国产精品二区 | 国产精品一区二区三区免费 | 亚洲精品视频一区二区三区 | 色天天综合 | 波多野结衣黄色 | 欧美综合视频在线观看 | 青青偷拍视频 | 日韩一级片在线观看 | 婷婷综合五月 | 一二三区在线 | 一本一道波多野结衣一区二区 | a级片久久| 成人一区二区三区在线观看 | 九九国产视频 | 超碰精品在线 | 欧美精品久久久久 | 亚洲欧美一 | 香蕉久久av | 久草国产精品 | 一级黄色大片免费观看 | 欧美视频免费在线 | 亚洲成人精品一区二区 | 天天操天天操天天操天天操天天操 | 国产专区av| 久久影院一区二区 | av在线首页 | 国产精品久久久国产盗摄 | 日韩欧美中文字幕在线视频 | 国产午夜三级 | 日韩精品一区二区三区在线 | 国产视频日韩 | 人人草人人 | va在线| 欧美久久久久久久久 | 亚洲字幕av一区二区三区四区 | 国产内谢|