<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
          China / Business

          C919 boasts global sourcing model

          By Zhu Wenqian (China Daily) Updated: 2017-06-13 07:08

          Editor's note: In the run-up to the 19th National Congress of the Communist Party of China, China Daily will cover a series of key projects and advanced equipment of national importance, showcasing the country's huge improvements and relentless efforts in manufacturing upgrading and innovation.

          The C919 aircraft, China's first homegrown large passenger jet, boasts a global sourcing model that is similar to that of Boeing Co and Airbus Group SE. The model is believed to increase production efficiency and save costs, but aircraft manufacturers retain control of key technologies.

          The C919 plane also has several significant technical breakthroughs. Intense research and development was conducted before production, and it uses a large amount of composite materials.

          For instance, 85 percent of its tail section is made from composite materials, according to Commercial Aircraft Corp of China Ltd, manufacturer of the C919. In China, the technology to apply composite materials is still in its infancy, and the application requires mould manufacturing, temperature control and other techniques.

           C919 boasts global sourcing model

          A C919 aircraft undergoes checks in Shanghai after a test flight. Yin Liqin / For China Daily

          Harbin Hafei Industry Co Ltd, an aviation manufacturer in Harbin, Heilongjiang province, is mainly responsible for the manufacturing of some parts that mainly use composite materials, including the hatch door for the front landing gear and the main landing gear, as well as the vertical tail of the C919.

          Li Wei, deputy chief engineer of the C919 project at Hafei, said: "We cooperated with Boeing, Airbus and Embraer before. The design capabilities, quality system, and the supplier management capability of COMAC are in line with international standards, when compared with established aircraft manufacturers."

          With more than 100,000 components required for the plane, more than 240 local Chinese companies have served as suppliers and manufacturers for the C919. More than 460,000 people have been involved in its research and development, and 37 higher education institutions joined the C919 project, COMAC said.

          Once the C919 plane starts mass production and delivery, it is expected to drive the rapid growth of the upstream and downstream industry chains and other high-end manufacturing sectors, such as metal materials, mechanical manufacturing, electronic information and chemistry.

          Wu Xingshi, a member of the State Council's large passenger aircraft program's expert advisory committee, said the C919 model has applied for airworthiness certificates with the industry's regulator, the Civil Aviation Administration of China, as well as the Europe Aviation Safety Agency, and China aims to accelerate the approval process for the C919.

          "For the ARJ21, the nation's first domestic commercial regional aircraft, it took about six to seven years of test flights before it received the airworthiness certificate, which was the longest period for commercial aircraft in history," he said.

          "The ARJ21 serves as a pioneer in China, and the test flight process of the C919 should be faster and more smoothly, until it proves that it can meet the operational requirements for commercial use."

          Lin Zhijie, an aviation industry analyst and columnist at Carnoc.com, one of China's largest civil aviation web portals, said China serves as the initiator and host of the C919 project.

          He said China is responsible for the original design, assembly and supplier management, and those responsibilities are seen as the key parts of large commercial aircraft manufacturing.

          "The capability of producing large commercial aircraft is a critical index to assess the industrial manufacturing and technological strengths of a country," Lin said.

          "We don't need to label the C919 as 100 percent made-in-China. Our aim is to integrate the most advantageous resources and latest technologies, and produce aircraft that will be competitive in the global market."

          Despite the promising prospects, Lin said the C919's entry to the market won't occur very soon. It is expected to go into operation between 2020 and 2022, and it ultimately aims to break the global market duopoly of Boeing and Airbus.

          Boeing Co earlier lifted its forecast for China. It said in the next two decades, the nation is likely to become the first country with an aviation market exceeding $1 trillion. During that period, Chinese airlines are estimated to purchase 6,810 airplanes valued at $1.025 trillion.

          zhuwenqian@chinadaily.com.cn

          Highlights
          Hot Topics

          ...
          主站蜘蛛池模板: 精品熟女日韩中文十区| 日韩东京热一区二区三区| 色综合久久久久综合99| 亚洲日产韩国一二三四区| 久久精品蜜芽亚洲国产AV| 一本色道久久88亚洲综合| 国产亚洲国产亚洲国产亚洲| 一卡2卡三卡4卡免费网站| 蜜桃mv在线播放免费观看视频| 亚洲熟女一区二区av| 人人爽人人爽人人片a免费| 国产自产一区二区三区视频| 亚洲 日本 欧洲 欧美 视频| 亚洲中文字幕久久精品无码喷水| 中文字幕少妇人妻精品| 产综合无码一区| 日韩成人免费无码不卡视频| 国产亚洲欧美在线观看三区| 午夜国产一区二区三区精品不卡 | 成人影片麻豆国产影片免费观看 | 69成人免费视频无码专区| 在线看无码的免费网站| 成人免费A级毛片无码网站入口| 久久精品熟女亚洲av麻| L日韩欧美看国产日韩欧美| 亚洲产在线精品亚洲第一站一| 欧美亚洲国产一区二区三区| 一区二区三区国产不卡| 日本夜爽爽一区二区三区| аⅴ天堂国产最新版在线中文| 日本三级香港三级三级人妇久| 无码国内精品久久人妻蜜桃| 99久久国产综合精品女图图等你| 亚洲二区中文字幕在线| 亚洲av日韩av综合aⅴxxx| 精品无码国产一区二区三区av| 国产成人综合色就色综合| 欧美日本免费一区二| 精品偷拍一区二区三区在| 福利视频一区福利二区| 欧美大胆老熟妇乱子伦视频 |