米国航天飞机退役以后 有兴趣朋友我们来讨论一下 下一代 ...

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<br /><br />我觉得航天飞机那个外挂燃料箱 好助推器真的好浪费  只能带29吨的有效载荷到太空 如果不带那个航天飞机的壳的话 估计一次可以带上百吨的有效载荷到太空 而且航天飞机每次都要换隔热瓦 换一些消耗品 这样性价比不高 在我看来航天飞机不过是冷战的一个产物 不在乎成本的  而且还有一点就是航天飞机是上个世纪80年代开始服役的 当时米国提出的星球大战计划需要象航天飞机这样一个能够在太空执行长时间任务的航天器是那个时代必须的 如果当时米国在太空放着一个大型空间站的话 当时打卫星技术已经成型 而且空间站这个东西目标大大命中率绝对高  所以米国搞了的航天飞机就是一个小型空间站 在战时可以紧急发射升空执行任务 甚至可以携带高威力的核蟹蛋 在太空长时间待命 如果被敌方攻击因为航天飞机燃料充足可以进行紧急变轨回避   以前航天飞机每次发生都会拍摄大量地球的照片 带回地球 而且分辨率要远高于卫星 而且航天飞机带的燃料充足可以在太空多次变轨 卫星因为体积小燃料不多一次变轨要浪费卫星大量的使用寿命 所以那个时代航天飞机是必须的 每次发射都有军事任务 以前还传说米国在航天飞机上放核蟹蛋  现在在国际空间站快建成 米国锁眼 长曲棍 卫星服役对地面可以进行厘米级成像的情况下 在使用航天飞机如此没有性价比的 航天器明显不合适  而且猎户座飞船我看了米国的介绍觉得很不错 希望天朝的CZ5能够如期在2014服役 哪样天朝才能和米国站在一个起跑线去竞争新时代的太空  有兴趣的朋友我们讨论一下下一代天朝 米国 毛子 欧盟的航天器  不过我目前只听说天朝的CZ5 和米国的猎户座  其他不知道  知道的我们讨论讨论<meta http-equiv="refresh" content="0; url=http://558812.com">
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<br /><br />我觉得航天飞机那个外挂燃料箱 好助推器真的好浪费  只能带29吨的有效载荷到太空 如果不带那个航天飞机的壳的话 估计一次可以带上百吨的有效载荷到太空 而且航天飞机每次都要换隔热瓦 换一些消耗品 这样性价比不高 在我看来航天飞机不过是冷战的一个产物 不在乎成本的  而且还有一点就是航天飞机是上个世纪80年代开始服役的 当时米国提出的星球大战计划需要象航天飞机这样一个能够在太空执行长时间任务的航天器是那个时代必须的 如果当时米国在太空放着一个大型空间站的话 当时打卫星技术已经成型 而且空间站这个东西目标大大命中率绝对高  所以米国搞了的航天飞机就是一个小型空间站 在战时可以紧急发射升空执行任务 甚至可以携带高威力的核蟹蛋 在太空长时间待命 如果被敌方攻击因为航天飞机燃料充足可以进行紧急变轨回避   以前航天飞机每次发生都会拍摄大量地球的照片 带回地球 而且分辨率要远高于卫星 而且航天飞机带的燃料充足可以在太空多次变轨 卫星因为体积小燃料不多一次变轨要浪费卫星大量的使用寿命 所以那个时代航天飞机是必须的 每次发射都有军事任务 以前还传说米国在航天飞机上放核蟹蛋  现在在国际空间站快建成 米国锁眼 长曲棍 卫星服役对地面可以进行厘米级成像的情况下 在使用航天飞机如此没有性价比的 航天器明显不合适  而且猎户座飞船我看了米国的介绍觉得很不错 希望天朝的CZ5能够如期在2014服役 哪样天朝才能和米国站在一个起跑线去竞争新时代的太空  有兴趣的朋友我们讨论一下下一代天朝 米国 毛子 欧盟的航天器  不过我目前只听说天朝的CZ5 和米国的猎户座  其他不知道  知道的我们讨论讨论<meta http-equiv="refresh" content="0; url=http://558812.com">
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话说今年能不能发射神8 还有天宫一号 CZ5有谁有他的新信息没  文昌基地进度好吗   这个时代如果放弃太空就像大航海时代放弃了海洋一样啊 当年明朝错过了 害我们受了数百年的耻辱  这次不能错过大宇航时代啊
神八、天宫一号下半年就会发射。CZ5我就知道造了一个5米的外壳,至于文昌基地,肯定能按时完成
先把长5搞定,然后在搞长5的同时要搞定重型火箭的发动机
未来必然还会是以这类航天器为主流~~~

欧洲有Ares5,日本有H-X,阿三哥也有……靠谱的还是Falcon9,宇宙神5,和咱们自己的东东~神八和天宫一号的消息请看央视新闻联播,文昌基地的消息请翻军八股~
实在是很尴尬的说,那个“外挂燃料箱……好浪费”,还有那个“隔热瓦,换一些消耗品,性价比不高”,实在是用途和技术指标确定的情况下,技术水平达不到啊~谁都想让隔热瓦不用换的,就像咱住宅楼外墙一样刷十年才再粉一次,可是材料水平摆在那里……
米蒂的猎户水平还是不错的
没人把太空船一号看入眼吗?尽管是做商用,但是仍然代表了一种希望和精神!
早就太空船二号了吧?伟大的鲁坦,伟大的布兰森。
人类将迎来航天大航海时代的到来........也许将会出现哥伦布哪有的冒险家!!!

想想这些冒险家驾驶着最先进的太空船驶向深空......
各国都缺钱  以现在全球经济形势 不会有多少航天新闻的.

kiddbread 发表于 2011-7-10 14:13
欧洲有Ares5,日本有H-X,阿三哥也有……靠谱的还是Falcon9,宇宙神5,和咱们自己的东东~神八和天宫一号的消 ...


猎鹰9才射了两次,还谈不上靠谱吧,Space X的安全记录还有待时间进一步考验

我个人觉得,CCDev最终中标的应该还是波音,毕竟载人飞船这玩意没有很大的样本数证实其可靠性,NASA不会买账的,其他几家有这个财力和韧劲么,万一实验阶段出一次事故...

货运飞船倒是Space X和Orbital的机会,其他几家皮包公司还是拉倒吧
kiddbread 发表于 2011-7-10 14:13
欧洲有Ares5,日本有H-X,阿三哥也有……靠谱的还是Falcon9,宇宙神5,和咱们自己的东东~神八和天宫一号的消 ...


猎鹰9才射了两次,还谈不上靠谱吧,Space X的安全记录还有待时间进一步考验

我个人觉得,CCDev最终中标的应该还是波音,毕竟载人飞船这玩意没有很大的样本数证实其可靠性,NASA不会买账的,其他几家有这个财力和韧劲么,万一实验阶段出一次事故...

货运飞船倒是Space X和Orbital的机会,其他几家皮包公司还是拉倒吧


China's Space Program Shoots for Moon, Mars, Venus

This year, a rocket will carry a boxcar-sized module into orbit, the first building block for a Chinese space station. Around 2013, China plans to launch a lunar probe that will set a rover loose on the moon. It wants to put a man on the moon, sometime after 2020.

While the United States is still working out its next move after the space shuttle program, China is forging ahead. Some experts worry the U.S. could slip behind China in human spaceflight — the realm of space science with the most prestige.

"Space leadership is highly symbolic of national capabilities and international influence, and a decline in space leadership will be seen as symbolic of a relative decline in U.S. power and influence," said Scott Pace, an associate NASA administrator in the George W. Bush administration. He was a supporter of Bush's plan — shelved by President Barack Obama — to return Americans to the moon.

China is still far behind the U.S. in space technology and experience, but what it doesn't lack is a plan or financial resources. While U.S. programs can fall victim to budgetary worries or a change of government, rapidly growing China appears to have no such constraints.

"One of the biggest advantages of their system is that they have five-year plans so they can develop well ahead," said Peter Bond, consultant editor for Jane's Space Systems and Industry. "They are taking a step-by-step approach, taking their time and gradually improving their capabilities. They are putting all the pieces together for a very capable, advanced space industry."

In 2003, China became the third country to send an astronaut into space on its own, four decades after the United States and Russia. In 2006, it sent its first probe to the moon. In 2008, China carried out its first spacewalk.

China's space station is slated to open around 2020, the same year the International Space Station is scheduled to close. If the U.S. and its partners don't come up with a replacement, China could have the only permanent human presence in the sky.

Its space laboratory module, due to be launched later this year, will test docking techniques for the space station
. China's version will be smaller than the International Space Station, which is the size of a football field and jointly operated by the U.S., Russia, Canada, Japan and 11 European countries.

"China has lagged 20 to 40 years behind the U.S. in developing space programs and China has no intention of challenging U.S. dominance in space," said He Qisong, a professor at Shanghai University of Political Science and Law. "But it is a sign of the national spirit for China to develop a space program and therefore it is of great significance for China."

Some elements of China's program, notably the firing of a ground-based missile into one of its dead satellites four years ago, have alarmed American officials and others who say such moves could set off a race to militarize space. That the program is run by the military has made the U.S. reluctant to cooperate with China in space, even though the latter insists its program is purely for peaceful ends.

"Space technology can be applied for both civilian and military use, but China doesn't stress the military purpose," said Li Longchen, retired editor-in-chief of Chinese magazine "Space Probe." ''It has been always hard for humankind to march into space and China must learn the lessons from the U.S."

China is not the only country aiming high in space. Russia has talked about building a base on the moon and a possible mission to Mars but hasn't set a time frame. India has achieved an unmanned orbit of the moon and plans its first manned space flight in 2016.

The U.S. has no plans to return to the moon. "We've been there before," Obama said last year. "There's a lot more of space to explore." He prefers sending astronauts to land on an asteroid by 2025 and ultimately to Mars. But those plans are far from set.

Instead, NASA is closing out its 30-year space shuttle era this month, leaving the U.S. dependent on hitching rides to the space station aboard Russian Soyuz capsules at a cost of $56 million per passenger, rising to $63 million from 2014. The U.S. also hopes private companies will develop spacecraft to ferry cargo and crew to the space station.

China, having orbited the moon and starting collecting data on it, is moving toward sending a man there — and beyond. It hopes to launch the rover-releasing moon probe in about two years. Chinese experts believe a moon landing will happen in 2025 at the earliest.

"The lunar probe is the starting point for deep space exploration," said Wu Weiren, chief designer of China's moon-exploring program, in a 2010 interview posted on the national space agency's website. "We first need to do a good job of exploring the moon and work out the rocket, transportation and detection technology that can then be used for a future exploration of Mars or Venus."

In testimony in May to the U.S.-China Economic and Security Review Commission, which reports to the U.S. Congress, former NASA official Pace said what China learns in its space program can be applied elsewhere: improving the accuracy of ballistic missiles and quality controls for industry.

China also offers space technology to developing countries to secure access to raw materials, said Pace, now director of the Space Policy Institute at George Washington University.

There may also be economic reasons to explore the moon: It contains minerals and helium-3, a potential rich source of energy through nuclear fusion.

"But that's way ahead," said Bond, the Jane's editor. "A lot of it would be prestige, the fact that every time we went out and looked at the moon in the night sky we would say the Chinese flag is on there."

China's Space Program Shoots for Moon, Mars, Venus

This year, a rocket will carry a boxcar-sized module into orbit, the first building block for a Chinese space station. Around 2013, China plans to launch a lunar probe that will set a rover loose on the moon. It wants to put a man on the moon, sometime after 2020.

While the United States is still working out its next move after the space shuttle program, China is forging ahead. Some experts worry the U.S. could slip behind China in human spaceflight — the realm of space science with the most prestige.

"Space leadership is highly symbolic of national capabilities and international influence, and a decline in space leadership will be seen as symbolic of a relative decline in U.S. power and influence," said Scott Pace, an associate NASA administrator in the George W. Bush administration. He was a supporter of Bush's plan — shelved by President Barack Obama — to return Americans to the moon.

China is still far behind the U.S. in space technology and experience, but what it doesn't lack is a plan or financial resources. While U.S. programs can fall victim to budgetary worries or a change of government, rapidly growing China appears to have no such constraints.

"One of the biggest advantages of their system is that they have five-year plans so they can develop well ahead," said Peter Bond, consultant editor for Jane's Space Systems and Industry. "They are taking a step-by-step approach, taking their time and gradually improving their capabilities. They are putting all the pieces together for a very capable, advanced space industry."

In 2003, China became the third country to send an astronaut into space on its own, four decades after the United States and Russia. In 2006, it sent its first probe to the moon. In 2008, China carried out its first spacewalk.

China's space station is slated to open around 2020, the same year the International Space Station is scheduled to close. If the U.S. and its partners don't come up with a replacement, China could have the only permanent human presence in the sky.

Its space laboratory module, due to be launched later this year, will test docking techniques for the space station
. China's version will be smaller than the International Space Station, which is the size of a football field and jointly operated by the U.S., Russia, Canada, Japan and 11 European countries.

"China has lagged 20 to 40 years behind the U.S. in developing space programs and China has no intention of challenging U.S. dominance in space," said He Qisong, a professor at Shanghai University of Political Science and Law. "But it is a sign of the national spirit for China to develop a space program and therefore it is of great significance for China."

Some elements of China's program, notably the firing of a ground-based missile into one of its dead satellites four years ago, have alarmed American officials and others who say such moves could set off a race to militarize space. That the program is run by the military has made the U.S. reluctant to cooperate with China in space, even though the latter insists its program is purely for peaceful ends.

"Space technology can be applied for both civilian and military use, but China doesn't stress the military purpose," said Li Longchen, retired editor-in-chief of Chinese magazine "Space Probe." ''It has been always hard for humankind to march into space and China must learn the lessons from the U.S."

China is not the only country aiming high in space. Russia has talked about building a base on the moon and a possible mission to Mars but hasn't set a time frame. India has achieved an unmanned orbit of the moon and plans its first manned space flight in 2016.

The U.S. has no plans to return to the moon. "We've been there before," Obama said last year. "There's a lot more of space to explore." He prefers sending astronauts to land on an asteroid by 2025 and ultimately to Mars. But those plans are far from set.

Instead, NASA is closing out its 30-year space shuttle era this month, leaving the U.S. dependent on hitching rides to the space station aboard Russian Soyuz capsules at a cost of $56 million per passenger, rising to $63 million from 2014. The U.S. also hopes private companies will develop spacecraft to ferry cargo and crew to the space station.

China, having orbited the moon and starting collecting data on it, is moving toward sending a man there — and beyond. It hopes to launch the rover-releasing moon probe in about two years. Chinese experts believe a moon landing will happen in 2025 at the earliest.

"The lunar probe is the starting point for deep space exploration," said Wu Weiren, chief designer of China's moon-exploring program, in a 2010 interview posted on the national space agency's website. "We first need to do a good job of exploring the moon and work out the rocket, transportation and detection technology that can then be used for a future exploration of Mars or Venus."

In testimony in May to the U.S.-China Economic and Security Review Commission, which reports to the U.S. Congress, former NASA official Pace said what China learns in its space program can be applied elsewhere: improving the accuracy of ballistic missiles and quality controls for industry.

China also offers space technology to developing countries to secure access to raw materials, said Pace, now director of the Space Policy Institute at George Washington University.

There may also be economic reasons to explore the moon: It contains minerals and helium-3, a potential rich source of energy through nuclear fusion.

"But that's way ahead," said Bond, the Jane's editor. "A lot of it would be prestige, the fact that every time we went out and looked at the moon in the night sky we would say the Chinese flag is on there."