<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          US EUROPE AFRICA ASIA 中文

          Landing scare grounds homemade planes

          By Zhao Lei and Wang Wen ( China Daily ) Updated: 2014-02-27 08:42:31

          C919 delays

          The maiden test flight of COMAC's C919 - the first Chinese-made large passenger aircraft - has been delayed by a year, until 2015, and the first delivery be not be made 2017, a year later than scheduled. The company has received orders of around 400 from domestic and overseas buyers.

          A lack of experience in the manufacture of commercial aircraft is one of the main reasons for the delay, the manager explained.

          "Because of our comparatively weak foundation in aviation technology, we have no choice but to take more time," he said. "But at least that will ensure safety."

          Wang Ya'nan, deputy editor-in-chief at Aerospace Knowledge magazine, acknowledged the problems faced by China's aircraft manufacturers.

          "Every aircraft maker faces the same dilemma after it puts a new product on the market," he said. "Large airlines are reluctant to use new aircraft because they know that doing so will bring potential risks generated by the aircraft, while small carriers, although more likely to use new-type aircraft out of the consideration of cost savings, lack skilled professionals and sufficient operational and maintenance experience, and are thus are more prone to accidents."

          "This is exactly the problem the MA-60 is facing," he added. "Chinese manufacturers must figure out a feasible way of selling their planes to large airlines, establish their brands and make profits - but that can only happen if it's based on a good safety record."

          The operations of 11 MA-60s owned by Okay Airways and eight owned by Joy Air, a budget airline based in Xi'an, have not been interrupted by Tuesday's incident. However, if the aircraft were grounded, Okay would be affected significantly because half of its 22 passenger jets are MA-60s.

          Pang said Xi'an-based company has more than 200 orders for MA-60s.

          The MA-60 is a turboprop-powered plane developed and made by Xi'an Aircraft Industry, and is based on the company's own Y-7 transport aircraft. The company has also developed its variant of the MA-60, called the MA-600.

          By the end of 2013, 88 MA-60s or MA-600s had been delivered to 24 buyers from 16 nations in Asia, South America and Africa, according to Pang Zhen, head of civil aircraft development at Aviation Industry Corp of China, the parent company of Xi'an Aircraft Industry.

          The rising price of aviation fuel has put airlines under heavy financial pressure, making turboprops, which consume less fuel compared with turbofan jets, more attractive to airline procurement managers, according to Pang, who said the global aviation market will need at least 2,900 turboprop regional airliners within the next 20 years, and that China will need around 350 of them.

          Xinhua contributed to the story.

           

          Previous Page 1 2 3 4 Next Page

          Most Popular
          Special
          ...
          ...
          主站蜘蛛池模板: 一个人看的www片高清在线| 在线精品一区二区三区视频| 国产精品久久综合桃花网| 亚洲综合国产一区二区三区| 国产AV福利第一精品| 国产女人在线视频| 蜜臀av片| 色吊丝二区三区中文写幕| 国产99视频精品免费观看9| √新版天堂资源在线资源| 日韩精品亚洲国产成人av| 国产精品乱码高清在线观看| 韩国无码AV片在线观看网站| 波多野结衣无内裤护士| 夜夜爽夜夜叫夜夜高潮| 国产免费久久精品44| 亚洲av成人免费在线| 久久久久99精品成人品| 口爆少妇在线视频免费观看| 2019久久久高清日本道| 九九在线精品国产| 成人自拍小视频免费观看| 国产精品福利在线观看无码卡一| 日本中文字幕一区二区三| 中文字幕有码在线第十页| 久久综合亚洲鲁鲁九月天| 国产午夜在线观看视频| 99热精品毛片全部国产无缓冲| 亚洲日韩一区二区一无码 | 日韩一卡2卡3卡4卡2021免费观看国色天香| 日韩人妻少妇一区二区三区| av在线网站手机播放| 欧洲精品不卡1卡2卡三卡| 91热在线精品国产一区| 日本一区二区在线高清观看| 日韩免费无码视频一区二区三区 | 五月天福利视频| 粉嫩一区二区三区精品视频| 尹人香蕉久久99天天拍| 99热久久这里只有精品| 久久天天躁夜夜躁狠狠85|