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

   

New low-altitude plane skims across water

By Miao Xiaojuan (China Daily)
Updated: 2007-07-11 06:49

SHANGHAI: A new low-altitude Wing-In-Ground aircraft (WIG), especially suitable for maritime transportation, has been developed by scientists from Tongji University.

The plane can fly as low as 0.5 to 5 meters from the ground, hitting speeds of up to 300 kilometers per hour. It has the capacity to bear weight of up to 4 tons on takeoff.

"It's as safe as ships, although five or six times faster," said associate professor Xu Zhengyu, vice-president of the research team. "And it can carry much more weight than ordinary airplanes while costing half as much and using half as much fuel."

Xu said the plane could also be flown for military use and border control.

According to Li Jun, another member of the team: "Unlike slow-speed cargo ships and high-priced airplanes, it could become a first-rate vehicle for maritime transportation. And its low altitude can increase its safety factors. There won't be serious casualties even if it falls into the sea. Also, it could be a good vehicle for sightseeing among islands."

Tongji University is reportedly planning to develop a 50-seat WIG by 2013, with 200 prototypes capable of carrying 200 to 400 tons scheduled for 2016 or 2017.

Taking advantage of the aerodynamics of the ground effect, which adds extra lift when flying at very low altitudes, the aircraft can fly close to the water's surface. This cuts back at least one-third on fuel consumption, compared with standard airplanes of the same size, because the plane can benefit from air buoyancy.

The WIG has been listed as one of three types of aircraft given the green light in the general aviation field by the State Commission of Science Technology and Industry for National Defense, Xu said.

"However, the Civil Aviation Administration of China has yet to confirm aviation regulations at such low altitudes, which may become a problem," Li added.

"We have a long way to go before it is launched into operation, but WIG will have a bright future without doubt," Li said.

(China Daily 07/11/2007 page5)



Top China News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
主站蜘蛛池模板: 草草影院在线 | av基地网| 婷婷啪啪 | 国产精品自拍区 | 日韩欧美国产一区二区三区 | 我想看黄色大片 | 国产三级一区二区三区 | 色网站入口 | av一区二区三 | 奇米成人网 | 亚洲色图一区二区 | 亚洲三级视频 | 在线看片中文字幕 | 亚洲福利天堂 | www.五月婷婷| 日韩精品乱码 | 亚洲一区二区三区在线观看视频 | 日韩欧美激情在线 | 在线播放一级片 | 17c国产精品一区二区 | av高清一区二区 | 91直接看| 国产专区在线播放 | 欧美日韩伊人 | 久久精品在线观看 | 黄色一级小视频 | 欧美日韩精品一二三区 | 亚洲精品福利视频 | 深爱激情综合网 | av青青草 | 国产又黄又爽视频 | 亚洲视频在线免费 | 国产另类xxxxhd高清 | 情侣av| 粉嫩av一区二区三区天美传媒 | 国产中文在线播放 | 欧美专区在线观看 | 婷婷丁香亚洲 | 五月网婷婷 | 午夜天堂在线观看 | 久久久一区二区三区四区 |