SpaceX is no longer limited to reusing rockets -- it's reusing capsules, too. The private spaceflight outfit has launched a refurbished Dragon cargo capsule (namely, one last used in September 2014) as part of a resupply mission to the International Space Station. While the vehicle isn't as complex as a Falcon 9, this shows that it can endure multiple launches ( SpaceX is targeting three) without a hitch. That's important for reducing the overall costs of spaceflight, especially when manned Dragon missionsbecome a reality.
The team also successfully landed the Falcon 9's first stage at Cape Canaveral, although these touchdowns are becoming nearly routine at this point. SpaceX wants to land as many rockets as possible going forward, but it's limited until Falcon Heavy arrives and it can routinely expect to have enough fuel for return trips.
It'll be a while before SpaceX can reuse every last inch of a rocket. Elon Musk is aiming for 2018. If and when that happens, though, it could mean a lot for space travel. Rather than throwing away millions (if not billions) of dollars' worth of equipment with every launch, both SpaceX and government agencies would only have to worry about replacements when the hardware either fails or reaches the end of its usable lifespan. That, in turn, could open the door to both more frequent launches and missions that would otherwise be too expensive to justify.
【 在 PBSNPR (大刀王五) 的大作中提到: 】 跟不上你匆匆的脚步：SpaceX再创历史！全球首次将一个回收复用的货运飞船重新送 入太空，一级火箭再次回收成功！ SpaceX is no longer limited to reusing rockets -- it's reusing capsules, too . The private spaceflight outfit has launched a refurbished Dragon cargo capsule (namely, one last used in September 2014) as part of a resupply mission to the International Space Station. While the vehicle isn't as complex as a Falcon 9, this shows that it can endure multiple launches ( SpaceX is targeting three) without a hitch. That's important for reducing : the overall costs of spaceflight, especially when manned Dragon missionsbecome a reality. ...................
【 在 PBSNPR (大刀王五) 的大作中提到: 】 跟不上你匆匆的脚步：SpaceX再创历史！全球首次将一个回收复用的货运飞船重新送 入太空，一级火箭再次回收成功！ SpaceX is no longer limited to reusing rockets -- it's reusing capsules, too . The private spaceflight outfit has launched a refurbished Dragon cargo capsule (namely, one last used in September 2014) as part of a resupply mission to the International Space Station. While the vehicle isn't as complex as a Falcon 9, this shows that it can endure multiple launches ( SpaceX is targeting three) without a hitch. That's important for reducing : the overall costs of spaceflight, especially when manned Dragon missionsbecome a reality. ...................
入太空，一级火箭再次回收成功！
SpaceX is no longer limited to reusing rockets -- it's reusing capsules, too. The private spaceflight outfit has launched a refurbished Dragon cargo
capsule (namely, one last used in September 2014) as part of a resupply
mission to the International Space Station. While the vehicle isn't as
complex as a Falcon 9, this shows that it can endure multiple launches (
SpaceX is targeting three) without a hitch. That's important for reducing
the overall costs of spaceflight, especially when manned Dragon
missionsbecome a reality.
The team also successfully landed the Falcon 9's first stage at Cape
Canaveral, although these touchdowns are becoming nearly routine at this
point. SpaceX wants to land as many rockets as possible going forward, but
it's limited until Falcon Heavy arrives and it can routinely expect to have enough fuel for return trips.
It'll be a while before SpaceX can reuse every last inch of a rocket. Elon
Musk is aiming for 2018. If and when that happens, though, it could mean a
lot for space travel. Rather than throwing away millions (if not billions)
of dollars' worth of equipment with every launch, both SpaceX and government agencies would only have to worry about replacements when the hardware
either fails or reaches the end of its usable lifespan. That, in turn, could open the door to both more frequent launches and missions that would
otherwise be too expensive to justify.
把废旧罐头壳拿来重新装东西，是废物利用而已
五毛就不用造谣了。
梅林火箭发动机月产量40台，只能提供每月4次发射。
梅林发动机地面试车寿命30多分钟，发射火箭第一级梅林发动机工作2分钟，理论上回
收的发动机至少可以使用15次。
中国长征火箭以前最贱，发射费用5000万-7000万美元，现在F9发射费用是3000万，一
旦多次回收使用，发射费用可以降到1000万以下。
一旦火箭第一级回收，每次发射花费只有3300万了（以10次回收计算）
发射成本只有600万了。
你看起来检修是不要成本的？
2岁小孩都看得出来。
以 SpaceX 公开的价格为例 (假定真实)，Merlin1D 单价约 $100+W ；
F9 一级 9 个发动机，合计约 $1000W ；铝锂合金半气球式箭体，价格和发动机差不多甚至略多，暂且也按 $1000W 计，一级约 $2000W 。
二级 1 个高空 / 真空版发动机，喷管较大，不知贵多少，暂按 $150W 计；箭体应该
也差不多，按 $150W 计，二级约 $300W 。
再算上腿、GNC 、RCS 、级间段、载荷适配器、整流罩等各种七七八八，$3000W 差不
多。
每次回收一个 $2000+W 的一级，假设维修花掉 $500W 即可再次发射，可节省半个火箭的造价，约 $1500W 。
发射报价 $6000W ，减去火箭成本 (或者对外售价？) ，导航、场地使用之类的费用大约是 $3000W ，这个很难省。
这个估算，能降价 $1500W ，和 $2000W 没有数量级的差别……
应该就检测、运输费用
另外，发射报价6000w，硬件成本3000w，场地、财务、人工、保险等等，可见利润也就几百万了
如果一级回收，能省下1500w，对利润提升就太大了
跨过去了，下面只是不断完善的性质或阶段。
根据以前大家比较普遍的看法，SpaceX所用的回收技术其实很普通，其实就是发射技术，只不过更加精细化 - 无论是推力还是方向控制（TVC）,接下来的复用貌似也不是大问题，无非就是翻新成本里说...，
NSF的相关贴：http://forum.nasaspaceflight.com/index.php?topic=39167.220
PS: 对SpaceX的复用项目,NSF给予了很大的关注,单独开了专区,帖子更是无数
试),如果证明各种指标在允许范围内,或许就直接重新发射了也未可.
2. Musk早就说过,他的最终目标是:一级收回后,直接加注燃料重新发射,不经过处理,或很少的维护.
3. Musk应该是个急性子,从F9S1着ASDS可见一斑,先期的速度控制的很快,都未成功,后
期很稳定,'先试死,后试生'.
搞回收后每十次失败一次。
每失败一次炸掉的卫星值两亿刀。
中国给印尼发通讯卫星部分失败造成减寿，保险赔偿就是好几亿。
文中提到F9的保费比最初下降了50%，也就是说最初的保费也不到10%，这样看来复飞的保费有望控制在10%以内。
消息估计只能是自己爆料了).
根据习惯, 对商人的话要打折, 但是, F9一级的复用可以降低成本, 在这里基本坐实了
, 从而, 在成本方面对 F9 可能陷于 航天飞机命运的担心, 应该烟消云散了.
发射同盟的费用则高达2.25亿美元。该公司正在研发可复用火箭，Musk 认为这将能进
一步降低发射费用。
改变。F9是一款多任务火箭，相同的二级构型可以执行LEO、SSO、GTO、更高速的深空
任务等。级间质量分布取决于对于目标任务优化取舍，简单的说一种固定比例对于每种任务而言并不是最优的，这里需要折衷。对于F9的实际需求看，LEO任务运力是富余的
、SSO次之，GTO任务比较紧张、深空任务很少。照此推测，F9级间质量分布应该是重点对GTO优化。从F9的升级情况看，级间质量分布并未改变，由此可知其优化策略也是一
贯的。
那我们看一下级间质量分布的影响。一般而言，通过计算火箭总Dv，在某个范围内小幅调整一二级质量分布时可以发现，较小的二级有助于提升高速任务、较大规模的二级更有利于提升LEO任务性能。但是F9是VTVL回收，二级规模又不能太小。所以目前的比例
肯定是围绕GTO和VTVL需求细优化过的，做了折衷，力图在实现一级VTVL的情况下GTO运力最大化。这种多目标约束条件下的优化，是一个比较复杂的过程。但可以明确的是，“多一分嫌肥、少一分则瘦”，无论一二级比例是增加还是减少，都会使得主要优化任务性能下降。
回到你说的一级相对短一点、二级加长的情况，对于GTO任务能力应该是负面影响，LEO运力可能会略有增加。
的忽悠，说没人搞过，技术难度太大，不一定能成功，那你就肯定采用他们说的难度低，价格贵，保守的方案了。而当你的CEO懂了技术，分析利弊，看清未来的发展方向，
就能作出正确的重大决定。一个公司的牛逼，并不是说你的技术人员牛逼就行，没有别人的推动，他们肯定不会采用创新，大胆的方案，毕竟这些更困难，谁也不想去找罪来受。就像没有乔布斯的苹果，创意缺乏，显得很平庸一样。
“我们会有一群人坐在会议室里商讨某个重大决定。房间里的每个人都会说，‘我们需要向左转。’而马斯克则说，‘不，我们要向右转。’这就是他的思维方式。他会说，‘你们这些人就喜欢走捷径。我们需要走难走的路。’”穆勒说。
发射了137次，发射失败一次，降落失败一次。