China's Space Program News Thread

Discussion in 'Strategic Defense' started by crazyinsane105, Oct 27, 2005.

  1. Fairthought
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    Fairthought Junior Member

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    Re: China’s Manned Military Space Ambitions

    walter is right, it is conservation of momentum.

    The mass of the bullets times their change in velocity must be counterbalanced by the mass of the space station times its change in velocity. Since the space station is much more massive, its change in velocity is very small. Attitude jets can easily compensate for any spin caused by the gun, and the station may either speed up or slow down depending upon the direction of fire.

    By the way, attitude jets expel nitrogen gas. It is inert and lightwweight, as well as being the primary component of air.

    The gun idea was abandoned anyway. Soviet satellites were outfitted with explosives triggered by a proximity fuse in the event the US space shuttle tried to 'nab' a soviet satellite or attach an eavesdropping parasite. It should be pointed out the Soviet navy was extremely vulnerable to this kind of Satellite attack. Their ships depended on satellite communications since the 1970's.
     
  2. WEN?
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    WEN? New Member

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    Chinese Satellites

    i dunno if this is true but my piano teacher told me about this. he said he read a article that china has the ability to change the path of its missles when it is flying. the article said that the chinese goverenment will be puting up a space shuttle that in orbit will be able to control chinese missles flight path when it is need. so if this is true then would the american 'star wars project' be pretty uselesss then.

    it also said that china and i think europeane countries will be putting up a GPS like thing consisting of 36 sattilites. this is said to be able to hit targets within one meter of the chosen spot. it also said that the american version of it can only hit within 10 meters. it says it is 10 years or something like that infront of the USA. is this stuff accurate???
     
  3. Gollevainen
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    Gollevainen Colonel
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    Re: chinese satelittes


    galileo??
    thougth im not aware that it have any military applications on sigth...(they are going to teach this stuff to us in our school so im effectively passed any info of them untill the inevitable...so correct me if im wrong;) )
     
  4. Dongfeng
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    Dongfeng Junior Member
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    Re: chinese satelittes

    Apparently your teach knows quite a lot about Chinese military as well as piano! ;)

    OK, time for some ABC:

    (1) It is not unusual for spacecraft, either manned or unmanned, to change orbit during its flight. Space shuttle changes its orbit many times during its flight. So this has become kind of routine procedure for spacecraft. After China's ShenZhou manned spacecraft made a couple of orbit changing during their flight, there has been some reports by Chinese media claiming that this confirms China's ability to change the course of its ballistic missile warhead during its final flight stage, thus increasing the difficulties to intercept the warhead for the missile defence system. The reality may never know since it is unlikely for China to launch a ICBM and then publish its flight data.

    (2) China does not have a plan at the moment to build any space shuttle. Also missiles do not need a space shuttle to change its flight route. Your teach got confused about this bit.

    (3) Galileo is a new satellite navigation and positioning system comaprable to the U.S. GPS. You can find some very helpful informaiton about it at BBS website: http://news.bbc.co.uk/1/hi/sci/tech/4555276.stm.

    The system is basically designed for civilian use, but with much higher accuracy (<1m) compared to the civilian signal of the GPS. So potentially it could be used for military purpose. China has the full right to use the Galileo signal, as many other coutries do. China was also invovled in some development work as well as investment in the Galileo project, but this does NOT mean China owns the system in any way.

    China is also developing its own satellite navigation system but is decades behind US, Russia and EU.
     
  5. patriot
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    patriot New Member

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    Re: chinese satelittes

    I don't believe that missiles changing directions was even true. It seems to me that it's another U.S propaganga in the "China Threat". Even if it was true, how would such a big military program be in a western paper. China was pretty good at making its military programs secret.
     
  6. adeptitus
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    adeptitus Captain
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    Re: chinese satelittes

    o_O If your Piano teacher is referring to GPS guidance and mid-course correction, yes, the PLA has weapons with such capability.

    Space shuttle in orbit? There is no Chinese space shuttle program.

    There are 3 major GPS networks being maintained or sent to space. The US based NAVSTAR & Russian GLONASS use ~24 satellites, and the European Galileo has 30 satellites planned. China's own Beidou navigation system, a "minor" GPS network with geostationary orbit satellites, has only 4 satellites planned.

    As for accuracy, I'll refer you to this article:
    http://en.wikipedia.org/wiki/GPS
    Satellite Navigation Systems can be used for determining one's precise location and providing a highly accurate time reference almost anywhere on Earth or in Earth orbit. The accuracy of the GPS signal itself is about 5 meters (16 ft) as of 2005 and has steadily improved over the last 15 years. Using differential GPS and other error-correcting techniques, the accuracy can be improved to about 1 cm (.4 in) over short distances.
     
  7. WEN?
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    WEN? New Member

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    Re: chinese satelittes

    i do believe that what Dongfeng said is the one my teacher was talking about. its the Galileo thing. also the chinese are doing this Galileo program along with European countries and the Americans were threatening them for giving china the tech. the americans are worried that china is getting all this high-tech stuff but none for themsleves even thought they are the ones ahead. so they say to Eurpoe we blow something up if u don't share. they also stopped a arms deal with china like this i think but Japan was also involved.
     
  8. Mr_C
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    Mr_C Junior Member
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    Re: chinese satelittes

    Yeah, one of the conditions that the Chinese made to the EU before they committed any money was that teh EU must allow chinese scientist to research and develop the system together. SO basically the Chinese will be able to get some technical know how on improving their own satellites.

    Some one said something about satellites that stays in one spot.... well those satellites r classified as Geostationary satellites and has little military purpose at the moment because their orbit is around 27 000 to 37 000km from the surface of the earth. That is way to far to get super accurate measurements required for military purposes and civilian measurements of various things.

    Galileo is built for civilian purposes... but the technology in it is pretty much the same for miltary purposes. Simply put.. the EU does not want to be completely reliant on the USA and wants to chip in teh business.
     
    #38 Mr_C, Jan 4, 2006
    Last edited: Jan 4, 2006
  9. patriot
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    patriot New Member

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    Re: China’s Manned Military Space Ambitions

    Those Western analysis kept making assumption about China's spending. First they say that our military spends 60 billion three times our stated spending. Now they are saying that we spend three times more on our space program than was stated. Anyone think we really spent that much money.:china:
     
  10. WEN?
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    WEN? New Member

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    Re: China’s Manned Military Space Ambitions

    according to the Pentagon's Chinese Military Report china spends 90 billion into is military in 2005. also since china is devoloping Anti Sattilite weapons wouldn't it be better to reaserach that and put them onto our own sattilites. i know it is kinda hard but its worth a try.
     
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