NASA宣布350亿美元 新式重型运载火箭Space Launch Syste ...

两枚5.5段大固推？5台大推力氢氧机？
1600*2+5*200＝4200
美国人钱多的烧了手啊！

头部有点土星5号的味道~~

很像土星5

太长了不全翻了。

似乎命名为SLS（Space Launch System）了？也太没想象力了吧。还是说是暂用代号？

嘛，总之这型火箭将携带猎户座飞船前往小行星及火星等深空目标。如果资金和资源到位，其运载量将超越土星5。NASA局长博尔顿称此项目将“创造就业、保持美国在宇宙探索领域的领导地位，并鼓舞、激励全世界热爱宇宙和航天的人们。”

这枚重型火箭基本版的SRB是从航天飞机用的那两个上面发展而来的五段式固体推进火箭。火箭的第一级直径为大约8.4米（27.5英尺），装备有3个RS-25D/E发动机（即航天飞机的主发动机）。第二级则使用一个土星5第二级发动机的升级版J-2X。这种配置的火箭LEO运力为70吨、第一级推力825万磅。

升级版本的第一级则使用5个航天飞机主发动机，第一级推力九百万磅，LEO运力130吨。

NASA计划在2017年进行第一次无人试飞。

NASA预期SLS和猎户座载人飞船的研发费用，以及肯尼迪太空中心的升级费用将耗资大约每年30亿美元。

到今年为止NASA每年仅在航天飞机项目上就花费20~30亿美元。NASA认为现有的预算规模是没有问题的。

NASA认为除了执行前往小行星和火星的载人任务外，SLS还可以带着航天员去GEO执行卫星维护任务，或者甚至是拉格朗日点。

14sls400378.jpg (30.74 KB, 下载次数: 0)

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2011-9-15 10:02 上传

http://www.spaceflightnow.com/news/n1109/14heavylift/

NASA unveiled the design of its long-awaited post-shuttle super rocket Wednesday, a gargantuan Saturn 5-class booster intended to propel the agency's manned Orion crew capsules beyond low-Earth orbit and onto a variety of deep space destinations ranging from nearby asteroids to Mars.

If fully funded and developed, it will be the most powerful rocket ever built, dwarfing the lift capability of the space shuttle and exceeding that of the mighty Saturn 5 that propelled the Apollo missions to the moon.

"This launch system will create good-paying American jobs, ensure continued U.S. leadership in space and inspire millions around the world," NASA Administrator Charles Bolden said in a statement. "President Obama challenged us to be bold and dream big, and that's exactly what we are doing at NASA. While I was proud to fly on the space shuttle, tomorrow's explorers will now dream of one day walking on Mars."

The initial version of the heavy-lift rocket will feature two five-segment shuttle-derived solid-fuel boosters strapped to a 27.5-foot-wide first stage powered by three RS-25D/E shuttle main engines. The second stage will use an upgraded Apollo J-2X engine, giving the Space Launch System -- SLS -- rocket the ability to lift 154,000 pounds of payload with a first stage thrust of 8.25 million pounds.

An upgraded version equipped with five shuttle main engines will have a liftoff thrust of some 9 million pounds and be able to loft more than 130 metric tons, or 286,000 pounds, to low-Earth orbit.

For comparison, the Saturn 5 rockets that powered the Apollo moon program stood 363 feet tall, generated 7.5 million pounds of first-stage thrust and were capable of boosting 263,000 pounds of payload to low-Earth orbit. The space shuttle, not counting its own weight, could carry a maximum payload of about 50,000 pounds.

Bill Gerstenmaier, NASA's chief of space operations, said the agency plans one or two unmanned test flights, the first in 2017, using five-segment solid-fuel strap on boosters built by Alliant Techsystems Inc., builder of the shuttle's four-segment boosters and the bigger five-segment rockets intended for the now-canceled Constellation moon program.

But the agency plans to quickly open a competition for follow-on boosters and the first stage core will be designed to accommodate either liquid or solid-fuel strap-ons.

Based on internal and external audits, NASA believes the Space Launch System -- the new heavy lift rocket, the Orion crew capsule and upgrades to the Kennedy Space Center launch infrastructure -- will cost about $3 billion per year, or $18 billion through the first test flight in 2017.

NASA had been spending $2 billion to $3 billion a year on shuttle operations alone and Gerstenmaier said the SLS program will be covered in NASA's current budget profile. But it's not yet clear whether cuts in other areas will be required.

And Gerstenmaier would not speculate on long-term operational costs, saying the agency needed to first define what sort of missions will be flown and when they will be launched.

Candidate missions include flights to nearby asteroids in the 2020s and eventual voyages to orbit and possibly land on Mars in the 2030s. Closer to home, Gerstenmaier said, the rockets could be used to send astronauts on satellite service calls to geosynchronous orbit 22,300 miles up or even to the Lagrangian points, scientifically useful gravitational eddies located a million miles or so from Earth.

"We need to get some more details on the actual rocket performance, put that together with these concepts and then start talking to some people about specifics," he said. "But what we've been tasked to do is build a capability driven framework and that's what we basically have here. We have the first two key elements that are critical to us doing these activities and we'll be working that over the next year or so to define various options."

In the wake of the 2003 Columbia disaster, President Bush ordered NASA to finish the International Space Station and retire the space shuttle by the end of fiscal 2010. When all was said and done, the final three shuttle missions were launched earlier this year and the program officially ended on Aug. 31.

The Bush administration's plan was to eliminate the costly shuttle program -- and the thousands of contractor jobs that made it so expensive -- and use the savings to help pay for a new program, building safer, lower-cost rockets needed to support the establishment of Antarctica-style bases on the moon by around 2020.

But the Bush administration never fully funded the Constellation moon program and President Obama decided in 2009 that it was too expensive. Instead, the president settled on a controversial new plan that marked a drastic change of course for NASA.

The so-called "flexible path" architecture called for the near-term development of private-sector spaceships to ferry astronauts to and from the space station on a for-profit basis while NASA focused on designing new, more affordable rockets and spacecraft for eventual deep space missions.

The commercial crew development program is now in the second round of contracts, with four companies competing to design manned orbital ferry craft. Initial flights are expected in the 2015 timeframe. In the meantime, U.S. astronauts are hitching rides to the station aboard Russian Soyuz spacecraft.

On the exploration front, NASA managers decided earlier to stick with the Constellation program's Orion crew capsule for deep space missions, renaming it the Multi-Purpose Crew Vehicle, or MPCV.

Obama's initial plan did not set a timetable for development of the heavy-lift rocket needed for deep space exploration, but he ultimately supported bipartisan legislation requiring NASA to start development right away and to have a rocket ready to fly by around 2015. Lawmakers have been clamoring for details and some remain skeptical.

"I am pleased that the Obama administration has finally agreed with Congress that SLS is the only viable option to maintain America's leadership in human space flight," Sen. Richard Shelby, an Alabama Republican whose state is home to NASA's Marshall Space Flight Center.

"However, we have not yet seen the details of this decision," he said in a statement. "Accordingly, I will continue to monitor this situation very closely to see whether the administration implements the 130-metric ton SLS plan as enacted by Congress."

Said Rep. Pete Olson, R-Texas: "While I am pleased that the new system has been announced, it was long past due and I will continue to push this White House to comply with the law of the land and get America back into space."

But Sen. Bill Nelson, a Florida Democrat who was instrumental in getting the SLS legislation approved, said "this is perhaps the biggest thing for space exploration in decades. The goal is to fly humans safely beyond low-Earth orbit and deep into outer space where we can not only survive, but one day also live."

Gerstenmaier said the new rocket was designed to keep costs down by taking advantage of existing shuttle main engines, the J-2X engine being developed for Constellation program, keeping the core booster's diameter the same as the shuttle's external tank to permit use of existing ground equipment and sharing components between the first and second stages.

"The key features of the space Launch System that we're developing is it's going to be an 8.4-meter (27.5-foot-wide) core stage, that's the same diameter as the shuttle tank and that gives us some commonality with equipment down at the Cape and lowers some of our development costs up front," he said.

"It also allows us to use some of the MLP (mobile launch platform) hardware that was developed for the Ares program. So that's a good thing for us. We're going to use shuttle main engines underneath that core tank. We'll be able to put three engines under there initially and potentially at some point grow to five engines, and that give us a varying thrust capability."

As for the side-mounted strap-on boosters, "it's initially solid rocket motors for potentially the first or second test flights and then we'll go compete those boosters and they could be any type of propellant," Gerstenmaier said. "We'll define the interface on the core where the solid rocket motors or the liquid rocket motors attach, we'll compete that in a full-up procurement activity."

He said the design of the rocket, with its reliance on existing technology, tooling and shuttle expertise will help NASA manage costs down the road, ensuring a "sustainable" program that will be less sensitive to the budget woes that ultimately derailed Constellation.

"We've tried to put together a construct that gives us flexibility as we go through the development process," he said. "If we don't get exactly the annual budget we anticipated, we have enough flexibility in the program we can accommodate that. We've also spread some of the development activities out ... so that they're not all stacked up on top of each other and that lowers our risk.

"So I'd say we have a pretty agile ability to keep costs under control. We're going to do our part."

太长了不全翻了。

似乎命名为SLS（Space Launch System）了？也太没想象力了吧。还是说是暂用代号？

嘛，总之这型火箭将携带猎户座飞船前往小行星及火星等深空目标。如果资金和资源到位，其运载量将超越土星5。NASA局长博尔顿称此项目将“创造就业、保持美国在宇宙探索领域的领导地位，并鼓舞、激励全世界热爱宇宙和航天的人们。”

这枚重型火箭基本版的SRB是从航天飞机用的那两个上面发展而来的五段式固体推进火箭。火箭的第一级直径为大约8.4米（27.5英尺），装备有3个RS-25D/E发动机（即航天飞机的主发动机）。第二级则使用一个土星5第二级发动机的升级版J-2X。这种配置的火箭LEO运力为70吨、第一级推力825万磅。

升级版本的第一级则使用5个航天飞机主发动机，第一级推力九百万磅，LEO运力130吨。

NASA计划在2017年进行第一次无人试飞。

NASA预期SLS和猎户座载人飞船的研发费用，以及肯尼迪太空中心的升级费用将耗资大约每年30亿美元。

到今年为止NASA每年仅在航天飞机项目上就花费20~30亿美元。NASA认为现有的预算规模是没有问题的。

NASA认为除了执行前往小行星和火星的载人任务外，SLS还可以带着航天员去GEO执行卫星维护任务，或者甚至是拉格朗日点。

14sls400378.jpg (30.74 KB, 下载次数: 0)

下载附件 保存到相册

2011-9-15 10:02 上传

http://www.spaceflightnow.com/news/n1109/14heavylift/

NASA unveiled the design of its long-awaited post-shuttle super rocket Wednesday, a gargantuan Saturn 5-class booster intended to propel the agency's manned Orion crew capsules beyond low-Earth orbit and onto a variety of deep space destinations ranging from nearby asteroids to Mars.

If fully funded and developed, it will be the most powerful rocket ever built, dwarfing the lift capability of the space shuttle and exceeding that of the mighty Saturn 5 that propelled the Apollo missions to the moon.

"This launch system will create good-paying American jobs, ensure continued U.S. leadership in space and inspire millions around the world," NASA Administrator Charles Bolden said in a statement. "President Obama challenged us to be bold and dream big, and that's exactly what we are doing at NASA. While I was proud to fly on the space shuttle, tomorrow's explorers will now dream of one day walking on Mars."

The initial version of the heavy-lift rocket will feature two five-segment shuttle-derived solid-fuel boosters strapped to a 27.5-foot-wide first stage powered by three RS-25D/E shuttle main engines. The second stage will use an upgraded Apollo J-2X engine, giving the Space Launch System -- SLS -- rocket the ability to lift 154,000 pounds of payload with a first stage thrust of 8.25 million pounds.

An upgraded version equipped with five shuttle main engines will have a liftoff thrust of some 9 million pounds and be able to loft more than 130 metric tons, or 286,000 pounds, to low-Earth orbit.

For comparison, the Saturn 5 rockets that powered the Apollo moon program stood 363 feet tall, generated 7.5 million pounds of first-stage thrust and were capable of boosting 263,000 pounds of payload to low-Earth orbit. The space shuttle, not counting its own weight, could carry a maximum payload of about 50,000 pounds.

Bill Gerstenmaier, NASA's chief of space operations, said the agency plans one or two unmanned test flights, the first in 2017, using five-segment solid-fuel strap on boosters built by Alliant Techsystems Inc., builder of the shuttle's four-segment boosters and the bigger five-segment rockets intended for the now-canceled Constellation moon program.

But the agency plans to quickly open a competition for follow-on boosters and the first stage core will be designed to accommodate either liquid or solid-fuel strap-ons.

Based on internal and external audits, NASA believes the Space Launch System -- the new heavy lift rocket, the Orion crew capsule and upgrades to the Kennedy Space Center launch infrastructure -- will cost about $3 billion per year, or $18 billion through the first test flight in 2017.

NASA had been spending $2 billion to $3 billion a year on shuttle operations alone and Gerstenmaier said the SLS program will be covered in NASA's current budget profile. But it's not yet clear whether cuts in other areas will be required.

And Gerstenmaier would not speculate on long-term operational costs, saying the agency needed to first define what sort of missions will be flown and when they will be launched.

Candidate missions include flights to nearby asteroids in the 2020s and eventual voyages to orbit and possibly land on Mars in the 2030s. Closer to home, Gerstenmaier said, the rockets could be used to send astronauts on satellite service calls to geosynchronous orbit 22,300 miles up or even to the Lagrangian points, scientifically useful gravitational eddies located a million miles or so from Earth.

"We need to get some more details on the actual rocket performance, put that together with these concepts and then start talking to some people about specifics," he said. "But what we've been tasked to do is build a capability driven framework and that's what we basically have here. We have the first two key elements that are critical to us doing these activities and we'll be working that over the next year or so to define various options."

In the wake of the 2003 Columbia disaster, President Bush ordered NASA to finish the International Space Station and retire the space shuttle by the end of fiscal 2010. When all was said and done, the final three shuttle missions were launched earlier this year and the program officially ended on Aug. 31.

The Bush administration's plan was to eliminate the costly shuttle program -- and the thousands of contractor jobs that made it so expensive -- and use the savings to help pay for a new program, building safer, lower-cost rockets needed to support the establishment of Antarctica-style bases on the moon by around 2020.

But the Bush administration never fully funded the Constellation moon program and President Obama decided in 2009 that it was too expensive. Instead, the president settled on a controversial new plan that marked a drastic change of course for NASA.

The so-called "flexible path" architecture called for the near-term development of private-sector spaceships to ferry astronauts to and from the space station on a for-profit basis while NASA focused on designing new, more affordable rockets and spacecraft for eventual deep space missions.

The commercial crew development program is now in the second round of contracts, with four companies competing to design manned orbital ferry craft. Initial flights are expected in the 2015 timeframe. In the meantime, U.S. astronauts are hitching rides to the station aboard Russian Soyuz spacecraft.

On the exploration front, NASA managers decided earlier to stick with the Constellation program's Orion crew capsule for deep space missions, renaming it the Multi-Purpose Crew Vehicle, or MPCV.

Obama's initial plan did not set a timetable for development of the heavy-lift rocket needed for deep space exploration, but he ultimately supported bipartisan legislation requiring NASA to start development right away and to have a rocket ready to fly by around 2015. Lawmakers have been clamoring for details and some remain skeptical.

"I am pleased that the Obama administration has finally agreed with Congress that SLS is the only viable option to maintain America's leadership in human space flight," Sen. Richard Shelby, an Alabama Republican whose state is home to NASA's Marshall Space Flight Center.

"However, we have not yet seen the details of this decision," he said in a statement. "Accordingly, I will continue to monitor this situation very closely to see whether the administration implements the 130-metric ton SLS plan as enacted by Congress."

Said Rep. Pete Olson, R-Texas: "While I am pleased that the new system has been announced, it was long past due and I will continue to push this White House to comply with the law of the land and get America back into space."

But Sen. Bill Nelson, a Florida Democrat who was instrumental in getting the SLS legislation approved, said "this is perhaps the biggest thing for space exploration in decades. The goal is to fly humans safely beyond low-Earth orbit and deep into outer space where we can not only survive, but one day also live."

Gerstenmaier said the new rocket was designed to keep costs down by taking advantage of existing shuttle main engines, the J-2X engine being developed for Constellation program, keeping the core booster's diameter the same as the shuttle's external tank to permit use of existing ground equipment and sharing components between the first and second stages.

"The key features of the space Launch System that we're developing is it's going to be an 8.4-meter (27.5-foot-wide) core stage, that's the same diameter as the shuttle tank and that gives us some commonality with equipment down at the Cape and lowers some of our development costs up front," he said.

"It also allows us to use some of the MLP (mobile launch platform) hardware that was developed for the Ares program. So that's a good thing for us. We're going to use shuttle main engines underneath that core tank. We'll be able to put three engines under there initially and potentially at some point grow to five engines, and that give us a varying thrust capability."

As for the side-mounted strap-on boosters, "it's initially solid rocket motors for potentially the first or second test flights and then we'll go compete those boosters and they could be any type of propellant," Gerstenmaier said. "We'll define the interface on the core where the solid rocket motors or the liquid rocket motors attach, we'll compete that in a full-up procurement activity."

He said the design of the rocket, with its reliance on existing technology, tooling and shuttle expertise will help NASA manage costs down the road, ensuring a "sustainable" program that will be less sensitive to the budget woes that ultimately derailed Constellation.

"We've tried to put together a construct that gives us flexibility as we go through the development process," he said. "If we don't get exactly the annual budget we anticipated, we have enough flexibility in the program we can accommodate that. We've also spread some of the development activities out ... so that they're not all stacked up on top of each other and that lowers our risk.

"So I'd say we have a pretty agile ability to keep costs under control. We're going to do our part."

啊，撞车了。

什么时候才能看到TG的

这长相......不就是土星五+俩助推火箭么

130吨？你这不是吓人吗？MD的确是牛啊

土星五穿越了

NASA官网上的第一话：介绍SLS
NASA is ready to move forward with the development of the Space Launch System -- an advanced heavy-lift launch vehicle that will provide an entirely new national capability for human exploration beyond Earth's orbit.
第二句:强调SLS是：1。安全的，2。可承受的起的，3。才是能力啊，技术啊之类的话。。。
The Space Launch System will give the nation a safe, affordable and sustainable means of reaching beyond our current limits and opening up new discoveries from the unique vantage point of space.

先达到 当初 的土星5再说吧

战神5又复活了……

纸飞机 发表于 2011-9-15 12:18
战神5又复活了……
倒退到了战神V总体阶段的方案

美公布新型重载火箭方案 未来可载重165吨2011-09-15 　来源: 中国新闻网(北京)　核心提示：美国国家宇航局14日宣布了新式重型运载火箭的设计方案，新型火箭将用于发射新的太空舱，到更远的未知领域去探索太空。新火箭初期计划搭载77吨到110吨重物，并用“猎户座”多用途太空舱搭载6名宇航员，最终将可搭载143吨到165吨重物。


资料图：美国土星5运载火箭。
美国总统奥巴马向NASA局长查尔斯·博尔顿表示，他希望用一个大负荷运载火箭来代替正在研制中的战神I号火箭。
美国国家宇航局14日宣布了新式重型运载火箭的设计方案，新型火箭将用于发射新的太空舱，到更远的未知领域去探索太空。
美国国家宇航局长查尔斯·博尔登与若干国会议员出席了当天在此间举行的新型运载火箭设计方案的揭幕仪式。
这个名为“太空发射系统”的火箭设计方案出台拖延已久。耗资可能高达数百亿美元的该计划预期在6年内发射升空，探索比当年登月更远的太空领域。
曾是宇航员的参议员比尔·纳尔逊称之为“庞大的火箭”。他承认现在推进这个项目有困难，因为美国该干的事情太多，要钱的地方竞争太激烈，但他称现在这个项目的开支是实际的。
纳尔逊估计未来5年总开支为180亿美元，不过有人估算总开支将高达350亿美元。
新式火箭与当年的阿波罗火箭有相似之处，都是用液态氢和液态氧等液体燃料推进，一次性使用，而不是像航天飞机那样用固体燃料推进，反复使用。新火箭动力更大，能抵达更远的空间轨道；体积也更大。这意味着美国政府将太空探索目标瞄向火星探索，而不是重登月球。






http://war.news.163.com/11/0915/09/7E007G8100011MTO.html
美国政府的航天飞机项目随着前不久“亚特兰蒂斯”号航天飞机完成太空绝唱之旅后，已经寿终正寝。今后近地轨道的太空探测将由私营领域设计新的航天器来实施。
美国国家宇航局官员透露，本世纪20年代和30年代时，美国将连续15年每年建造和发射一枚新的运载火箭。最早不搭载人的试验预计于2017年进行，2021年进行首次搭载宇航员的飞行，2025年宇航员向附近的小行星进军，最后目标是2030年代绕火星飞行，并在火星着陆。
新火箭初期计划搭载77吨到110吨重物，并用“猎户座”多用途太空舱搭载6名宇航员，最终将可搭载143吨到165吨重物，而登月用的“土星”推进器只能搭载130吨重物。






http://war.news.163.com/11/0915/09/7E007G8100011MTO.html

努把力，看能不能和米帝一起发射……

据说大火箭要立项………

转了一圈 回到阿波罗时代啊！

转了一圈 回到阿波罗时代啊！

呵呵..MD

了无新意啊~

这年头的MD，说不定五年后观海下台，研制预算超支，然后项目就像星座一样被取消了。还是等两年在看吧。

其实就是土星五的升级版

还不是让TG刺激的，TG在过十几年就有能力登月了，他不上火星怎么体现他的霸主地位。
个人觉得，50年内登陆火星意义不大

165吨！这充分说明土星V的潜力有多么大。不过这个项目可能因为某个议员跳出来说“这是用上个世纪的过时技术骗取纳税人的钱”而流产……

美国航天局公布大推力火箭计划
http://news.sciencenet.cn/htmlnews/2011/9/252541.shtm
作者：任海军 来源：新华网 发布时间：2011-9-15 13:29:51
美国航天局9月14日公布了研发大推力火箭计划。待研制成功后，它将是美国推力最强的运载火箭，可以运送宇航员前往火星等深空探索目的地。

新火箭将借鉴航天飞机使用的液氢液氧引擎、燃料箱以及升级后的航天飞机固体燃料推进器。它将比美国登月项目所用的“土星5号”火箭更强大，初始推力可达77吨，美航天局希望最终将这一推力提升到143吨。

如果一切顺利，该火箭的首次无人试射将于2017年在肯尼迪航天中心实施，在此之前，美国航天局的研制总投入将达100亿美元。预计，其首次载人发射将在2021年后进行。

美国航天局负责太空运行的副局长比尔·格斯登美尔当天说，制造这种新火箭比较困难，但它将是美国制造的“最大、最强有力的火箭”。美航天局局长查尔斯·博尔登也表示，新发射系统将创造更多就业，美国有望在太空探索领域保持领先地位。

“我以乘坐过航天飞机而自豪”，曾经是宇航员的博尔登说，“今天的孩子们却可以梦想将来漫步火星。”

美国航天局当天还表示，将在“奥赖恩”载人系统研发上继续投入60亿美元，此前该局已为“奥赖恩”项目投入50亿美元。美航天局还将拨款20亿美元改进佛罗里达发射场的设施，为发射新火箭作准备。

美国航天局已于今年5月底披露了研制新式载人航天器的计划。该航天器名为“多用途载人航天器”，大致以“星座计划”中的“奥赖恩”飞船为基础建造。依据设计方案，新航天器的外形呈锥体，可供4名宇航员在里面生活21天，其安全性是航天飞机的10倍。

美国总统奥巴马上任后决定放弃重返月球计划。他希望美航天局能制造大推力火箭，将宇航员送往小行星，最终前往火星，并鼓励美国私营企业开发运送宇航员和货物前往国际空间站的“太空巴士”。

美国私营企业太空探索技术公司曾于今年4月宣布，该公司正在研制大推力火箭，其载荷可达航天飞机的两倍，发射成本可大幅降低。

更多阅读

美国航天局相关报道（英文）:http://www.nasa.gov/exploration/systems/sls/sls1.html

美国航天局公布大推力火箭计划
http://news.sciencenet.cn/htmlnews/2011/9/252541.shtm
作者：任海军 来源：新华网 发布时间：2011-9-15 13:29:51
美国航天局9月14日公布了研发大推力火箭计划。待研制成功后，它将是美国推力最强的运载火箭，可以运送宇航员前往火星等深空探索目的地。

新火箭将借鉴航天飞机使用的液氢液氧引擎、燃料箱以及升级后的航天飞机固体燃料推进器。它将比美国登月项目所用的“土星5号”火箭更强大，初始推力可达77吨，美航天局希望最终将这一推力提升到143吨。

如果一切顺利，该火箭的首次无人试射将于2017年在肯尼迪航天中心实施，在此之前，美国航天局的研制总投入将达100亿美元。预计，其首次载人发射将在2021年后进行。

美国航天局负责太空运行的副局长比尔·格斯登美尔当天说，制造这种新火箭比较困难，但它将是美国制造的“最大、最强有力的火箭”。美航天局局长查尔斯·博尔登也表示，新发射系统将创造更多就业，美国有望在太空探索领域保持领先地位。

“我以乘坐过航天飞机而自豪”，曾经是宇航员的博尔登说，“今天的孩子们却可以梦想将来漫步火星。”

美国航天局当天还表示，将在“奥赖恩”载人系统研发上继续投入60亿美元，此前该局已为“奥赖恩”项目投入50亿美元。美航天局还将拨款20亿美元改进佛罗里达发射场的设施，为发射新火箭作准备。

美国航天局已于今年5月底披露了研制新式载人航天器的计划。该航天器名为“多用途载人航天器”，大致以“星座计划”中的“奥赖恩”飞船为基础建造。依据设计方案，新航天器的外形呈锥体，可供4名宇航员在里面生活21天，其安全性是航天飞机的10倍。

美国总统奥巴马上任后决定放弃重返月球计划。他希望美航天局能制造大推力火箭，将宇航员送往小行星，最终前往火星，并鼓励美国私营企业开发运送宇航员和货物前往国际空间站的“太空巴士”。

美国私营企业太空探索技术公司曾于今年4月宣布，该公司正在研制大推力火箭，其载荷可达航天飞机的两倍，发射成本可大幅降低。

更多阅读

美国航天局相关报道（英文）:http://www.nasa.gov/exploration/systems/sls/sls1.html

真是逆天啊!

说着是土星五升级版的，统统回去面壁

差距大到令人发指，就现在来看，我朝的航天动力和航空动力基本是一对难兄难弟，只是前者在使用寿命之类要求不高，率先堪用而已。。感叹几句

要是MD这个计划能够落实，那TG估计也不会闲着。呃，未来20年有好戏看了。

dark_knight 发表于 2011-9-15 19:16
说着是土星五升级版的，统统回去面壁
难道J-2X不是J-2的升级么，从这个角度说的确算“升级版”。不过用了RS-25和RSRM，不说是SDLV反而说SaturnV升级，就是脑子有问题了

lsquirrel 发表于 2011-9-15 20:12
难道J-2X不是J-2的升级么，从这个角度说的确算“升级版”。不过用了RS-25和RSRM，不说是SDLV反而说Saturn ...
ESAS 27.3号方案的5.5节助推器版改进型

放弃了Ares V最终布局的芯一级6 RS-68A方案，主要是五发布局更为成熟，而且很容易在初期实现三发简化布局，在对位上去掉两台发动机即可

SSME有更高的比冲，而且积累了足够多的工作时间，在可靠性上有保证

是航天飞机升级版。

这个算是NASA完成的家庭作业吧

dark_knight 发表于 2011-9-15 20:37
ESAS 27.3号方案的5.5节助推器版改进型

放弃了Ares V最终布局的芯一级6 RS-68A方案，主要是五发布局更 ...

是航天飞机升级版。

这个算是NASA完成的家庭作业吧

MD现在就剩下忽悠了，没钱什么都别想，先把经济扭转了再说。。

就看元老院能不能批下钱来了。

和美帝比，真是没脾气
要说输，觉得就输在材料上。总跟着人家屁股后面跑，估计是追不上了

和美帝比，真是没脾气
要说输，觉得就输在材料上。总跟着人家屁股后面跑，估计是追不上了

TG加油。！我看好你哟.!

lsquirrel  AresV 不是RS-68B么，68A是给Delta IV用的

那是方案阶段，并不是最后定型的设计啊

差距十分巨大

http://www.dsti.net/Information/News/70515

NASA泄露的文件显示SLS火箭成本可能将达625亿美元
2011-09-15
　　[据华尔街日报2011年9月12日报道] 8月19日，NASA项目经理们为“太空发射系统”（SLS）准备了一份预算分析，华尔街日报获得一份副本。根据这份文件，未来五年，如果按照一些议员希望的那样加快研制速度，下一代硬件的花费将高达230亿美元，而NASA最初预计为160亿美元。
　　
　　此后十年，NASA将建造并测试两枚起飞质量达130吨的不同火箭，这时费用的增长就更高了。此类火箭能将航天器送往小行星等目的地。
　　  
　　文件基于国会目前采用的优先级次序，并将项目膨胀和加速研发工作计算在内，预计要在2025年研制出并使用这种系统，成本可能高达570亿美元。加上升级发射设备、建造额外的航天器以实现载人火星或月球登录，成本可能要达到625亿美元。
　　
　　但没有任何一种设想认为新火箭会在2017年底之前实现载人飞行。（中国航天工程咨询中心 侯丹 陈菲）

http://www.dsti.net/Information/News/70514

NASA希望加速“太空发射系统”（SLS）计划研制生产
2011-09-15
　　[据华尔街日报2011年9月12日报道] 白宫预算官员越来越关心NASA一些载人探索计划未来可能会在经济上无法承担，尤其是目前NASA正在权衡的方案，希望加速火箭和航天器研发速度，这有可能会将成本提高数十亿美元。
　　
　　到2025年，NASA长期载人探索计划的成本可能会突破600亿美元，比原本预计要高出一倍。一些政府官员透露，未来几周内，奥巴马总统可能会宣布一项关于太空项目的决定，白宫将要求国会从2012财年开始为这项计划投资。
　　
　　目前讨论的主要问题之一是：国会是会支持NASA按照最初计划：“到2025年耗资350亿美元建造重型火箭和载人太空舱”，还是会冒着政治风险要求更多的资金，加快试验和研制速度。
　　
　　按照NASA的推断，提速后的计划总成本可能会增加近80%，由350亿美元飙升至620亿美元。然而，很多NASA和白宫管理与预算办公室（OMB）官员开始担心，350亿美元的方案已难于通过国会批准，申请更多经费的方案通过批准的机会就更小了。NASA一位发言人表示，NASA想进行的是一项“经济可承受、可持续、可实现的长期探索计划”，并且在竭力避免过去曾经犯过的错误，使美国在太空中的领导地位永远不遭受挑战。
　　
　　OMB发言人认为，虽然白宫承诺要进行太空探索，但我们“必须确保在这个领域花费的每一分钱都不浪费。OMB将继续与NASA合作，更好地了解成本，并选择一种“可行且现实的长期探索战略”。（中国航天工程咨询中心 侯丹 陈菲）