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.
年轻人沦为“迷惘的一代” 东西坏了不会修
当爱已成往事:美剧里的这些匆匆那年
囧研究:工作不开心者不容易瘦?
乔治·克鲁尼客串《唐顿庄园》圣诞特辑
如何看穿圣诞礼物是否合他人心意
调查:工程学和化学专业就业最佳
神秘圣诞老人:帮穷人付清玩具账单
摒弃15条毁灭生活的“箴言”
阿根廷法院判定猩猩有人权 应有自由
看比尔盖茨如何写2017年终总结
英国警方开网店甩卖赃物 获利27万英镑
圣诞节哪个国家放假时间最长?
研究:人造精子和卵子或将成为可能
惊!天涯神帖13天前预测亚航失事
卢布贬值 女性买不起口红 俄议员:用甜菜根擦嘴
2017年最流行词语出炉 心形符号居首
糖也是一种危险 毒品一樣的美味
粮食危机或引发世界大战
亚航客机失联 机上162人国籍公布
性格小测试:生日颜色看个性
有对象了吗?过年惯例问题应答指南
这些常见的果蔬竟然还有亮肤功效
研究:负面信息易导致女性增肥
想屏蔽无线信号?穿条牛仔裤就行
女汉子:我不需要男人的11个理由
无人机或成自拍新神器
用什么布置你的节日之家
健康革命 人类最大的福祉
逗比求职者“业余爱好”笑翻HR
男人女人都喜欢看什么电视节目?
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |