<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 / Innovation

          New ultrafast helicopters might be ready by 2025

          By Zhao Lei (China Daily) Updated: 2015-07-10 07:50

          Aircraft has potential to help with tasks like counterterrorism, search and rescue

          China should produce prototypes of its two ultrafast helicopters within the next decade, the country's chief helicopter designer said.

          "The development of advanced, new-concept helicopters has been included in national aviation industry plans and related experiments such as the wind tunnel tests are underway," said Wu Ximing, chief helicopter designer at Aviation Industry Corp of China.

          "We expect to produce some proof-of-concept prototypes within the coming four to five years to examine their design and to conduct some test flights," he said. "Then we plan to make production prototypes before 2025."

          Aviation Industry Corp of China debuted models of several new-concept helicopters at the Second China Helicopter Expo in September 2013. Among the exhibits were the Blue Whale tilt rotor aircraft and the unmanned Jueying-8 helicopter. Both are still being developed by the company's Helicopter Research and Development Institute.

          The Blue Whale's edge will be its ultrafast speed - 700 kilometers per hour, which is twice the top speed of most current helicopters.

          The Jueying-8 will be an unmanned, high-speed helicopter. Designers hope its shuttle-shaped structure will enable it to achieve a maximum speed of 400 km/h. The unique design will also make the helicopter less detectable by radar.

          Wu Peixin, an editor at Aerospace Knowledge magazine, said the projects show China has expertise in the development of composite materials, aerodynamics and helicopter engines.

          Song Zhongping, a military affairs commentator, told Qianjiang Evening News of Zhejiang province that ultrafast helicopters will have huge potential in counterterrorism and anti-submarine tasks and maritime search and rescue. Their high speed will be helpful for them to evade anti-aircraft weapons, he added.

          zhaolei@chinadaily.com.cn

           

          Highlights
          Hot Topics
          ...
          主站蜘蛛池模板: 免费现黄频在线观看国产 | 五月婷婷中文字幕| 无码精品人妻一区二区三区中| 欧美亚洲一区二区三区在线| 成年午夜无码av片在线观看| 久久影院午夜伦手机不四虎卡| 国产+亚洲+制服| AV无码免费不卡在线观看| 国产中年熟女大集合| 午夜日本永久乱码免费播放片| 亚洲成人av在线资源| 野花韩国高清bd电影| 自拍视频一区二区三区四区| 人妻丰满熟妇无码区免费 | 天堂av网一区二区三区| 无码熟妇人妻AV影音先锋| 北条麻妃无码| 午夜福利看片在线观看| 国产亚洲综合欧美视频| 中文文字幕文字幕亚洲色| av在线 亚洲 天堂| 精品视频一区二区福利午夜 | 中文字幕少妇人妻精品 | 樱花草视频www日本韩国| 亚洲第一国产综合| 亚洲影院丰满少妇中文字幕无码| 天堂资源在线| 午夜福利片1000无码免费| 中国xxxx真实偷拍| 亚洲一区成人在线视频| 国产日韩午夜视频在线观看| 精品人妻中文字幕在线| 国产精品99久久99久久久不卡| 国产真实精品久久二三区| 国产成人AV男人的天堂| 亚洲精品91中文字幕| 国产一区二区在线影院| 国产精品色呦呦在线观看| 最好看的中文字幕国语| 天天爽夜夜爱| 综合色亚洲|