中国为发展登月计划发展新一代火箭英文原文
著:Wei Long(中) 译:
马晓慧


    大公报香港报道,中国将着手研究开发新一代火箭,此类火箭拥有一个可再利用的发射系统,以期其能在月球上登陆。

    在9月16日由香港记者联合会举办的讨论会上,中国火箭的主要设计者龙乐豪(音译)认为,未来发射器的改革将主要集中在三个方面:

    第一方面,改进现有的发射器,即我国的长征系列,在二至三年内提高其可靠性和栽重能力;

    第二方面,开发无毒无污染的发射器,并使近地轨道发射器在总达到20公吨以上,远地轨道则争取由现有的5.5公吨提高到大约14公吨,估计这一目标可在五年内实现。

    第三方面,研制并开发循环利用的发射器,以降低发射成本,并为未来远太空搜索创建一个高科技基地。中国仅在此领域作一些早期的搜索和准备工作,最初的研究室将二级发射器减少为单级发射器,并进一步开发航空器回收利用技术。

    身为中国航天技术研究院技术委员会的主席,龙乐豪还表示,中国已有了登月的技术基础。但是登月计划以及其产生的经济效益,譬如探索开发能源,则需要更长远的计划。报道未透露登月是载人还是无人的。当被问及中国第一个载人飞船的计划时,龙乐豪像是很含蓄的说:"载人宇宙飞行是一个循序渐进的过程,在加加林进入太空时,俄罗斯进行了七次无人飞行实验;美国进行的实验次数更多。在科学领域中,有一个内在规律,中国也必须遵循这一规律。我们现在正在积极筹划和参与无人实验飞行的竞争,我认为首次载人飞行即使不会很快,但也不会远。但是今年是不会有在人飞行了。"

    下一个载人飞船神舟2号的无人飞行试验,据称将在十一国庆节前举行。去年11月,神舟1号成功完成其处女航--绕地球14周后在内蒙古安全着陆。

    龙乐豪强调说,只有在比较过几次无人飞行并获得可靠的估计值后,中国才可能进行一次载人飞行。他证实了中国已经派宇航员到俄罗斯接受特训并业已回国并接受更长时间的国内训练的消息。但是,其未透露参加特训的宇航员的人员人数以及训练时间。

    出席这次讨论会的还有我国卫星的主要设计人员林保华(音译)。他介绍说,从1970年开始太空计划至今,我国已经研制了45颗人造卫星,用于科学探索、气象观测、信号传递和资源勘探。他还透露,在未来几年内,中国将把重点放在研制高性能、大容量的卫星上,以赶超世界先进水平。

    龙乐豪补充说,要使中国的太空计划赶上世界先进水平,不仅是在技术上与发达国家竞争,更使国家经济实力和综合国力的竞争。"由于中国还有很多国内项目要实施,能提供于太空计划的资金十分有限。在这种情况下,中国不会在各方面都参与竞争,而是将重点放在关键领域。"

 

   译自 SpaceDaily

China To Develop New Generation of Rockets With View To Moon Landing
Chinese Version
By Wei Long(Chinese)


Beijing - Sept. 19, 2000
  China will start research and development of a new generation of rockets, including a reusable launch vehicle (RLV), and set its sight on landing on the Moon, the Hong Kong-based Ta Kung Pao reports.
At a discussion forum hosted by the Hong Kong Journalist Association last Saturday (Sept. 16), the Chief Designer of Chinese rockets Long Lehao said that future launcher development would be in three main areas: 

  Modify existing launchers, the Changzheng series, to increase their reliability and payload capacity in two to three years; 
Develop non-toxic, non-polluting launchers, and increase low-Earth-orbit launch capacity to over 20 tonnes and high-orbit capacity from the current 5.5 tonnes to about 14 tonnes. This is achieveable within five years; 
Research and develop a RLV and lower launch costs, and to develop an advanced technology base for use in deep space exploration. China only begins early exploration and preparation in this area. Initial research will be in reducing a two-stage launcher to a single-stage reusable launcher and developing technologies and techniques in retrieval of portions the RLV.

  According to Long, who is also the Chairman of the technology committee of the Chinese Academy of Launch Vehicle Technology (CALT), China has the basic means to land on the Moon. But a lunar landing mission and its economic benefits, such as resource exploration and exploitation, would require further planning. The newspaper report did not indicate whether the lunar landing is manned or unmanned.
When asked about the timeline of China's first manned mission, Long replied philosophically: "Manned spaceflight is a procedural and gradual process. Russians conducted seven unmanned test flights before Gagarin went into space. Americans conducted even more [preparatory unmanned] flights.

  "In scientific matter there is certain inner regularity, Chinese also have to obey this scientific regularity. We are actively preparing in this arena [of unmanned test flights]. ... I don't think it [the first manned mission] will be too far off, although it won't be too soon. Perhaps there won't be suddenly a [manned] flight this year."

  The next unmanned test of the manned spacecraft, dubbed Shenzhou 2 mission, is rumoured to take place near the time of the National Day on October 1. Last November Shenzhou 1 successfully completely its maiden flight of 14 orbits and returned safely to land in Inner Mongolia.

  Long stressed that only after comparing results of several unmanned test flights and obtaining reliable assessment would China launch its first manned mission.

  Long also confirmed that China had sent its yuhangyuan ("astronauts") to train in Russia and had since returned home for on-going domestic training. However, he did not reveal who, when and how many yuhangyuan received training aboard.

  Also presented at the forum was Lin Huabao, Chief Designer of Chinese satellites. Lin said that since the beginning of the space program in 1970, China had developed more than 45 satellites for science exploration, meteorological observations, broadcasting and resource surveying.

  "In the next few years China will put an emphasis on developing large capacity communications satellites that will match international technological levels," said Lin.

  Long added that for the Chinese space program to reach world level, it is not only a simple comparison with other spacefaring nations at the technological level; but in fact a comparison of the integrated national economy and power.

  "Since China has many domestic programs to administer, funding for the space program is very limited. Under the circumstances China will not compare its space program in all areas with others. Instead the country will make more investment in key areas."

 

   From SpaceDaily

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