BEIJING, March 5 -- China announced Tuesday that the country's new solid rocket booster, with 200-tonne thrust engine, completed hot firing tests, proving its readiness for commercial launches.
With a diameter of 2.65 meters, the booster engine is expected to be used on the modified version of the Long March-11 rocket. The rocket is the only series in the Long March family that uses solid propellants, and it can be launched within 24 hours.
Developed by the Academy of Aerospace Solid Propulsion Technology under the China Aerospace Science and Technology Corporation, it will be China's most powerful rocket booster engine, delivering a maximum thrust of 200 tonnes and the ability to carry as much as 71 tonnes of fuel.
It will have a carrying capacity of 1.5 tonnes for sun-synchronous orbit.
In 2009, the academy took the lead in China in developing a rocket booster engine for the Long March-11. The previous-generation, covered with a steel shell, was 2 meters in diameter, capable of 120 tonnes of thrust and could carry 35 tonnes of fuel.
To increase its carrying capacity and market competitiveness, the new booster is made using filament winding composite material, which is better and can be applied more widely than a metal shell, said Wang Jianru, chief designer of the booster.
The successful tests mark a milestone in developing a more efficient booster engine with cost advantage for China's new-generation rocket, according to the design team.
China's first seaborne rocket launch is scheduled for mid-2019, with a Long March-11 carrier rocket set to blast off in the Yellow Sea.
幼儿英语单词顺口溜:脸部五官
少儿英语单词卡片:景物英语名称
少儿英语单词大全:家庭篇
少儿英语单词顺口溜:食物及餐具英语单词歌
幼儿英语单词顺口溜:学生的一天
少儿英语单词儿歌:早上好
少儿英语单词卡片:衣服英语名称
看故事学英语单词:一鸣惊人
少儿英语单词儿歌:颜色
少儿英语单词分类汇总
少儿英语单词卡片:气象英语名称
幼儿英语单词顺口溜:常见水果
少儿英语单词顺口溜:少儿学科科目英语单词歌
幼儿英语单词顺口溜:季节与天气英语单词歌
少儿英语单词:交通篇
幼儿园英语单词教案
少儿英语单词儿歌大全
幼儿英语单词顺口溜(上)
幼儿英语单词顺口溜:文具词汇
少儿英语单词大全:身体篇
幼儿英语单词顺口溜:快餐食品
学前英语常用词汇:疑问词
少儿英语单词儿歌:Apple Tree
看故事学英语单词:毛遂自荐
看故事学英语单词
幼儿英语单词顺口溜:动物名词歌
幼儿英语单词顺口溜:家庭成员
幼儿英语单词顺口溜:色彩和颜色
少儿英语单词顺口溜:工作和职业英语单词歌
少儿英语单词儿歌:月份的天数
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |