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SpaceX Plans Drone Ship Landing On January 17th (nbcnews.com)

Rei writes: With the world's first successful low-speed landing of an orbital rocket's first stage complete, SpaceX looks to continue that success by attempting its second landing — this time, on their new drone ship in the Pacific. While SpaceX has announced plans to turn their successfully-landed rocket, reportedly flight-ready, into a a museum piece, the stage they recover next may be SpaceX's first chance to prove the mudslinging of their competitors wrong and show that Russia's worries are well founded. That is, if they can successfully pull it off.

115 comments

  1. Ship landing? by Anonymous Coward · · Score: 0

    I'm not sure I understand the point of a ship landing. If you want to end up on a ship, it seems like a close-to-ship splashdown and recovery would be much simpler and cheaper to implement.

    1. Re:Ship landing? by TWX · · Score: 5, Informative

      Just a guess, but they probably don't consider a splashdown-landed rocket viable to be relaunched, or that the refurbishment costs of a rocket that has been immersed-in and possibly flooded-by seawater is too high to justify doing that over building a new one.

      This argument was made back when the Shuttle Program SRBs were ocean-landed and recovered, if I remember right they were never reflown either.

      --
      Do not look into laser with remaining eye.
    2. Re:Ship landing? by Captain+Hook · · Score: 2

      The point is to recover the stage for easy future use. How easy will it be to reuse a stage which has been floating in the sea for several hours (minimum).

      Also, a longer term plan is to be able to touch down on land, the sea provides a good environment to practice soft landings because when you fail you are a really long way from any people/infrastructure and because with the motion of the landing ship, once you can reliably do sea landings, surface landings should be relatively easy

      --
      These comments are my personal opinions and do not necessarily reflect the opinions of the other voices in my head.
    3. Re:Ship landing? by Anonymous Coward · · Score: 1

      Salt water is a killer on structures and engine components. Even being near the sea is what killed one of the Falcon 1 launches, salty air caused corrosion of a bolt I believe. Soaking highly complex rocket components in it is exponentially worse. While you could probably build a rocket to soft land in the water and survive, refurbishing it to launch again would be a nightmare.

    4. Re: Ship landing? by Anonymous Coward · · Score: 0

      Isn't landing on a drone ship "being near seawater"?

    5. Re:Ship landing? by gman003 · · Score: 4, Informative

      Shuttle SRBs were never reflown as the same unit, but they were disassembled for parts to use on later boosters - which were a combination of new and refurbished parts from various flights. Several booster components (structural/aerodynamic parts, mainly) from STS-1 were still being flown on STS-135, the final mission.

      I can't speak for the actual economics of the practice, but on paper it looks like it has several obvious advantages, particularly when, as a solid rocket, the largest and most complex component is consumed during flight.

    6. Re:Ship landing? by Anonymous Coward · · Score: 0

      Yes, much cheaper and simpler.
      Of course you also have to throw away the engines (you know, the expensive bits) because you dunked them in fucking sea water.
      Know what's even cheaper and simpler? Just let the first stage break up in the atmosphere. No extra cost or complexity and roughly as much re-usability as your proposal.

    7. Re:Ship landing? by Geoffrey.landis · · Score: 1

      I'm not sure I understand the point of a ship landing. If you want to end up on a ship, it seems like a close-to-ship splashdown and recovery would be much simpler and cheaper to implement.

      It's easier, but not a good idea if you want to re-use the equipment. Dunking hot rocket engines into cold saltwater turns out to be a bad thing for the hardware.

      --
      http://www.geoffreylandis.com
    8. Re:Ship landing? by TWX · · Score: 3, Informative

      How many parts were used though? Did they limit reuse to just the structural connecting assembly that attached the SRB to the liquid tank, which presumably was a very durable, very hard, very corrosion-resistant part, or did they ship the segments back to Thiokol to get refurbished into fueled segments to then ship back to Florida for use?

      --
      Do not look into laser with remaining eye.
    9. Re: Ship landing? by Anonymous Coward · · Score: 0

      Yes, and most launch sites (at least those used by the US) are on the coast. But being near salt water is manageable, paint and special coatings can generally keep the corrosion at bay, dunking your spacecraft in the stuff is a different matter. Its like dealing with bowl of liquid nitrogen, you can put your hand near it without too much difficulty, at most you might need some gloves. Shove your hand into it for a few minutes however and you're going to have a very bad day.

    10. Re:Ship landing? by Rei · · Score: 4, Insightful

      It's also not just about floating in seawater. The shuttle SRBs, for example, hit the water at highway driving speeds. It's basically a highway-speed crash.

      But yes, floating in seawater is not exactly conducive to reuse of sensitive components ;) It's like saying, "Hey, toss your car in the ocean, have it bob around for a couple hours, then fish it out, dry it off and start it up, it'll surely be fine!" Only rockets have far tighter tolerances than cars - cars are sturdy, heavily built things while rockets are giant aluminum balloons that weigh a couple dozen times more when full than empty. Cars pump their fuel through tiny nozzles and drain a half dozen liters per hour of driving, while rockets can drain a swimming pool's worth of fuel and burn it in a manner of seconds. Cars roll down roads and face "some" air resistance, while rockets face so much that the compression heating burns the paint off of them. Etc.

      --
      He's the sort of person who would sell the Red Cross to Dracula.
    11. Re:Ship landing? by Richard_at_work · · Score: 1

      The segments were refurbished, refuelled and assembled back into stacks for reuse.

    12. Re:Ship landing? by AikonMGB · · Score: 2

      Also, a longer term plan is to be able to touch down on land, the sea provides a good environment to practice soft landings because when you fail you are a really long way from any people/infrastructure and because with the motion of the landing ship, once you can reliably do sea landings, surface landings should be relatively easy

      That was originally true, but the order kind of ended up getting swapped: SpaceX has already successfully landed a Falcon 9 first stage on land, back at the launch site (different pad, but nearby): https://youtu.be/1B6oiLNyKKI

    13. Re:Ship landing? by Pascoea · · Score: 2

      Not to mention that comparing the level of complexity of a first stage liquid propellant booster with a solid rocket booster just isn't fair.

    14. Re: Ship landing? by Pascoea · · Score: 1

      I would compare it to driving your car on a road next to a beach vs driving your car on a beach vs driving your car through the water vs driving it off a pier. Each one is a progressively worse idea, as far as long term reliability.

    15. Re: Ship landing? by Anonymous Coward · · Score: 0

      i bet one of the reasone is floatsum and jetsum. my brother was in Flordia for a shuttle launch. he was staying at a hotel with some guys from the navy go out and get the rocket boosters. they told him that the boosters would be considered jetsum and thus the first one to get to them can claim them. i am gussing landing them on the ship would solve that also.

    16. Re:Ship landing? by solartear · · Score: 1

      They have successfully 'landed' some Falcon 9 first stages onto the sea, for a few seconds. It is not designed strong enough to withstand the ocean's waves, so they break up within a few seconds. Adding more strength to survive the ocean would add too much mass to the rocket.

    17. Re:Ship landing? by TWX · · Score: 3, Insightful

      So, to confirm this, and yes, I know, I'm oversimplifying...

      They're essentially reusing the steel cylinder. Presumably they strip it, media-blast it to remove all traces of its previous use down to bare metal, inspect it with sonic or magnaflux or X-ray or pressure test, along the way somewhere confirming its dimensions are still within spec and haven't ballooned due to use, then if it passes, clean again and build it in a similar fashion to if it had been a new steel cylinder being built as a rocket motor...

      Don't get me wrong, it's not cheap to build a new steel cylinder capable of handling the pressures that the SRBs take, but if my assumptions about the reuse procedures are even somewhat in the ballpark it's more like recycling than a simple reuse. It saves money, but it's not a simple matter of recovering the spent SRBs from the ocean, checking a few things, buffing the paint and repainting anything that needs it, and casting a new propellant grain into them.

      I'm assuming that SpaceX's goal is to collect the landed rocket, clean it, run diagnostics on its active systems, perform some materials tests at places that are known to have suffered load like where the legs attach and at the endcaps where the thrust pressures are highest, touch-up the paint, fill it with its liquid fuel again, and launch it again, possibly all at the same spaceport.

      --
      Do not look into laser with remaining eye.
    18. Re:Ship landing? by Anonymous Coward · · Score: 0

      Are you sure the segments were reused? While that definitely was the intent I think I recall watching a documentary where they let slip that the segments had never actually been reused. If I'm remembering correctly they pillaged the aft skirt and the nose cone, scrapped the rest and built new segments.

    19. Re:Ship landing? by Richard_at_work · · Score: 5, Insightful

      The two things that are different between the Shuttles SRB situation and SpaceX's Falcon situation is that the SRBs underwent a significant impact with the ocean and a prolonged dip in salt water, so they literally needed to be stripped down, checked for stress issues etc etc, especially as there was a lot of rubber seals in there which are all suspect after that salt water bath. The Falcon undergoes none of that, so hopefully requires less stringent checks before it can be reused.

    20. Re:Ship landing? by Richard_at_work · · Score: 1

      Yes, they were definitely reused - infact, the skirt and the nose cone are the two parts which would be most suspect out of the stack, due to the vertical impact with the ocean that the SRBs underwent (the skirts take most of that impact, and the nose cones undergo their own impact, while the rest of the stack "bobs" more gently to a horizontal position).

    21. Re:Ship landing? by Anonymous Coward · · Score: 0

      Additionally there will be some launches that it would be impossible to return to land where a sea recovery will be the only option.

    22. Re:Ship landing? by Anonymous Coward · · Score: 0

      I used to work at Thiokol - EVERYTHING was reused except for the nozzle (which was severed from the stack before splashdown so it would reduce the impact force - the nozzle had a long lever arm).

      The SRBs were unstacked at the cape, shipped to Clearfield, Utah, where the cases were washed (insulation is charred and needs to be replaced), all the components cleaned, refurbished if necessary, and reused.

      Some components were reused even when it would have been cheaper to buy new ones (yes, in the aerospace world, it can be more expensive to tear something down, refurb it, and rebuild it than to buy a new one).

      The requirement was 20 usages.

    23. Re:Ship landing? by Bruce+Perens · · Score: 3, Informative

      SRBs were firecrackers. No control once you start them. The Falcon 9 first stage has engines capable of throttle and relight and a computer that can bring it back autonomously. So, there is a lot besides the rocket in the Falcon that was not in the SRBs.

    24. Re: Ship landing? by bill_mcgonigle · · Score: 1

      The end goal is a landing at the space port, right near the launch pad - turn-around in a few days, so they can get to 50 launches a day on an ongoing basis. Watch the vision video on their website.

      As far as landing at sea goes - they have the ships and they want their vehicle dynamics control to be able to handle the challenge. It will help improve correctness. Land landings will benefit from the improved algorithms. If the extant regimes get too bitchy it gives them additional options too. Plus, I dunno, a seastead spaceport maybe? Maybe Theil and Musk are talking again.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    25. Re:Ship landing? by werepants · · Score: 1

      It saves money, but it's not a simple matter of recovering the spent SRBs from the ocean, checking a few things, buffing the paint and repainting anything that needs it, and casting a new propellant grain into them.

      It's debatable too whether it actually saves money. Maybe if the launch rates ever reached the projections it would have, but as it is they just about broke even.

    26. Re:Ship landing? by Richard_at_work · · Score: 1

      I'm not disputing that, but the point is that the SRB undergoes a lot more individual high impact events than the Falcon does - the Falcon gets a pretty good ride compared to what happens with the SRB and thus the re-use scenario is different.

    27. Re: Ship landing? by Bruce+Perens · · Score: 1

      Salvage law is actually much more complicated than that. The key issue here is that the returned space hardware is not abandoned, so just taking it would be theft or piracy. But the main reason SpaceX doesn't want itts rocket in the water is the same reason you don't want to give your car a few hours dip in salt water.

    28. Re:Ship landing? by Megane · · Score: 1

      At first it was just to prove to everybody that they could land accurately enough to be safe, and it wouldn't land in a populated area.

      But they still need the boat because the center first stage of Falcon Heavy will be too far downrange for a land landing. They want to eventually be able to refuel the stage on the boat and launch it back to an on-shore landing pad.

      --
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    29. Re: Ship landing? by Bruce+Perens · · Score: 3, Informative

      A lot of the mission profiles don't work for return-to-launch-site. Heavy payloads to geosynchronous transfer orbit will not leave enough fuel, but they can still reach the barge. The center booster of F9 heavy goes too far downrange but not high or fast enough to make an orbit. So it must use the barge. We haven't heard of them planning to use any conveniently-placed land like San Nicolas Island from Vandenberg.

    30. Re:Ship landing? by hackertourist · · Score: 2

      There's another big difference: the SRBs had walls of 8 mm thick steel. The F9 uses 0.4 mm of aluminium.

    31. Re:Ship landing? by delt0r · · Score: 1

      How do you weld that?

      --
      If information wants to be free, why does my internet connection cost so much?
    32. Re:Ship landing? by Anonymous Coward · · Score: 0

      https://en.wikipedia.org/wiki/Friction_stir_welding

    33. Re:Ship landing? by sackbut · · Score: 1

      The point is to recover the stage for easy future use. How easy will it be to reuse a stage which has been floating in the sea for several hours (minimum).

      Also, a longer term plan is to be able to touch down on land, the sea provides a good environment to practice soft landings because when you fail you are a really long way from any people/infrastructure and because with the motion of the landing ship, once you can reliably do sea landings, surface landings should be relatively easy

      Also the reason for an ocean based landing is so the booster does not have to do a U turn to come back to the take off location. This means that Space-X can launch a larger payload because they don't need as much fuel for the return. Or do it cheaper.

    34. Re:Ship landing? by Anonymous Coward · · Score: 0

      I can see where splashdown could apply a lot of force, but I don't think the force of just taking off could really be considered an absence of stress...

    35. Re: Ship landing? by Redbehrend · · Score: 1

      I'm sure other people pointed out 75% of the earth is water.. They want the shortest possible return path.... This means ships will be required for landings and it's all automated. As space x stated they are even building the automated ship system... something that should have been built long ago. Short version of what they have said automated ship systems are over priced POS right now. Lol

    36. Re:Ship landing? by WolfWithoutAClause · · Score: 1

      The Falcon 9 is built more like an eggshell whereas the SRBs was built more like a ship.

      That actually makes a big difference. The SRBs should have been more reusable than the Falcon 9 is, although the SRBs needed more rework each time.

      --

      -WolfWithoutAClause

      "Gravity is only a theory, not a fact!"
    37. Re:Ship landing? by Agripa · · Score: 1

      They're essentially reusing the steel cylinder. Presumably they strip it, media-blast it to remove all traces of its previous use down to bare metal, inspect it with sonic or magnaflux or X-ray or pressure test, along the way somewhere confirming its dimensions are still within spec and haven't ballooned due to use, then if it passes, clean again and build it in a similar fashion to if it had been a new steel cylinder being built as a rocket motor...

      Part of the refurbishment procedure included using a hydraulic press to squeeze the steel booster segments back into shape because the force between the main tank attachment and the skirt attachment which held the entire structure to the ground after the shuttle engines were started would bend the booster segments out of round. This bending became significantly worse before Challenger after the launch procedure was changed to hold the shuttle down longer after engine ignition.

      One of the observations from the Challenger inquiry was that after the hold down procedure was changed, the booster segments were coming back so bent up that the hydraulic press no longer had enough force to reform them safely. The force was measured and if above a threshold the booster segment was suppose to be discarded but instead a mechanical press was added to bypass this.

    38. Re:Ship landing? by Anonymous Coward · · Score: 0

      How do you weld that?

      https://en.wikipedia.org/wiki/Friction_stir_welding

    39. Re:Ship landing? by delt0r · · Score: 1

      As far as i can tell from the videos, its not welding .4 mm think sheet, closer to 5mm +. That is problem, the thinkness.

      --
      If information wants to be free, why does my internet connection cost so much?
  2. So the old one... by TWX · · Score: 1

    ...has become Musk's secret hideout down in Baja?

    Makes me wonder if his wife is going to play Tiffany Case in the remake of Diamonds are Forever...

    --
    Do not look into laser with remaining eye.
    1. Re:So the old one... by Rei · · Score: 2

      They have three now - "Just Read The Instructions", "Of Course I Still Love You", and this one, whose name has not yet been announced (it's built from a barge called the Marmac 303). It's not clear what they're planning with Just Read The Instructions at this point, it may be permanently retired.

      --
      He's the sort of person who would sell the Red Cross to Dracula.
    2. Re:So the old one... by Bruce+Perens · · Score: 2

      Two. One of the Marmac 300 series barges went back to the owner and the modifications were moved to another one which has been seen in the port of San Pedro, California.

    3. Re:So the old one... by Rei · · Score: 1

      That would be the Just Read The Instructions then that went back to the owner; it had been taken out of service and replaced with the Of Course I Still Love You.

      --
      He's the sort of person who would sell the Red Cross to Dracula.
    4. Re:So the old one... by TWX · · Score: 2

      I guess "RTFM" wasn't considered an acceptable name...

      --
      Do not look into laser with remaining eye.
    5. Re:So the old one... by Bruce+Perens · · Score: 1

      The new one might remain JRTI, or could get another Iain Banks spaceship name like Very Little Gravitas Indeed.

  3. Mudslinging?! by Anonymous Coward · · Score: 2, Insightful

    I got baited into clicking on the mudslinging link in the summary and I saw no such thing. The worst I saw is X's competitors just mentioning the engineering hurdles that X will have to overcome to have a reusable vehicle. How is that mudslinging?

    1. Re:Mudslinging?! by 110010001000 · · Score: 5, Funny

      Because you will be shocked at what happens next!

    2. Re:Mudslinging?! by Anonymous Coward · · Score: 0

      Jeff Bezos has been that annoying smug asshole with an ego too big for his accomplishments. What Blue Origin and SpaceX did are completely different and SpaceX's accomplishments were significantly more technically challenging. And yet there's this punchable face....

      https://twitter.com/JeffBezos/status/679116636310360067?ref_src=twsrc%5Etfw

    3. Re:Mudslinging?! by Geoffrey.landis · · Score: 2

      Jeff Bezos has been that annoying smug asshole with an ego too big for his accomplishments.

      I would have said the opposite. What is interesting about Blue Origin is how little they've been interested in press coverage. Mostly their attitude seems to be "let's build stuff; not talk about it." Space-X, and Musk, are constantly getting interviews, getting press coverage, discussing future plans and blue-sky concepts; Blue Origin, and Bezos, almost never discusses the future plans.

      (a quick google search tells me that Blue Origin gets 1/30 of the news coverage hits that SpaceX does)

      What Blue Origin and SpaceX did are completely different ...

      Yes, that part is true; they are in many ways very different.

      --
      http://www.geoffreylandis.com
    4. Re:Mudslinging?! by Rei · · Score: 3, Interesting

      Submitter here. I actually tried to come up with a better word but couldn't. They're really "slinging" doubt, but "doubtslinging" isn't a word. I thought of "FUD", but that implies a point of view, that the other side is deliberately trying to scare people off with misinformation, and that would be taking things too far.

      Some of you with better English language skills than I can surely come up with better phrasing that's not overly wordy.

      --
      He's the sort of person who would sell the Red Cross to Dracula.
    5. Re: Mudslinging?! by Bing+Tsher+E · · Score: 1

      It's nice that the two projects exist, so that fanboys can team up.

    6. Re:Mudslinging?! by Bruce+Perens · · Score: 2

      It's lying with statistics.

      Essentially, it is an argument that the sunk costs of infrastructure and the factory are greater than those of the rocket, and that building a rocket 30% larger that can return undamaged is more expensive than the ULA plan of ejecting the engines alone and having them descend under a hang-glider and then be caught mid-air by a helicopter.

      Because of their analysis, I am thinking of asking for a brand-new airliner every time I take a flight :-)

      The full economics of re-use can't be achieved in full until the second stage comes back too. But they can, for example, cut the cost in half pretty easily if they get a lot of boosters back.

      I figure that there isn't an end to demand for less-expensive space flight. What are presently Billion dollar satellites will become 10 Million dollar ones that are replaced every year. Etc.

    7. Re:Mudslinging?! by Bruce+Perens · · Score: 2

      It would be more fair to compare Bezos effort with Scaled Composites Spaceship One, another reusable sub-orbital space tourist effort. Which probably got more publicity.

    8. Re:Mudslinging?! by amicusNYCL · · Score: 3, Interesting

      They're really "slinging" doubt, but "doubtslinging" isn't a word. I thought of "FUD", but that implies a point of view

      FUDslinging would actually be a pretty scrumtrulescent word.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    9. Re:Mudslinging?! by budgenator · · Score: 1

      I'm not sure that the second stage could be returned, first it's single Merlin vacuum engine only has 934kN thrust which I don't think would be enough to de-orbit without burning up. Now what might be really interesting is just parking them in orbit, 8 or 9 vacuum rated engines with fuel and oxidiser tanks might be handy. The Merlin vacuum is rated for multiple restarts, refuel enough of them and a Lunar, Martian or L5 mission get a leg up without too much added cost.

      --
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    10. Re:Mudslinging?! by Dereck1701 · · Score: 1

      From what I've heard they've given up on second stage return with the Falcon 9/Heavy program. I would imagine it is technically possible but it probably decreased the effective payload too much to be viable. They've already pushed the height of the rocket to the max withing the current rocket diameter to get the (impressive) return to launch site capability. They do intend for full reusability when (hopefully) they build the Falcon X with its significantly more efficient Raptor engines.

  4. set a course for planet willis,,, by Anonymous Coward · · Score: 0

    just a bald rock until now? passengers include; some wrinkled old zionic nazi freemasons, some virgins, a few hymenless monkeys & gargoyles,, some slave laborers & a new world begins? phewww

    1. Re:set a course for planet willis,,, by TWX · · Score: 1

      Whachyou talking about? Willis?

      --
      Do not look into laser with remaining eye.
  5. Drone Ship Landing by Anonymous Coward · · Score: 2, Funny

    Landing is cool. But how are they going to get the drone ship to fly in the first place? Is it like the Helicarrier in The Avengers?

  6. Drone Ships by JimSadler · · Score: 0

    I promise you that the US Navy has a great interest in drone ships. Among other considerations, a drone ship can easily be built in such a way that waves do over its decks such that it has very low visibility. One idea is to tow such a vessel to withing a hundred miles or so of a potential target and then release it. It could easily get closer without being noticed and could deliver missiles or other aerial drones quite quickly to the troubled area. These drone ships are capable of going a distance by themselves and could be placed on standby for months or even years. I would not be shocked to see one created that could rest on the bottom until pressed into service and then rise and becoming a battle barge.

  7. Hope they succeed, but its going to be difficult by Anonymous Coward · · Score: 0

    They've proven that they can land on land, but their track record with their drone ships isn't so great. Landing an aircraft on a ship adds several dimensions of difficulty that you don't encounter on land (moving platform, smaller landing area, higher winds, etc), ask any pilot who has landed on a carrier. I suppose push comes to shove they could simply build a bigger drone ships, perhaps use an oil platform design to limit deck movement, but where possible building land based pads in various locations is probably preferable.

  8. Re:Cart before horse by jfdavis668 · · Score: 4, Insightful

    You can't reuse one until you learn to land them successfully. They have landed ONE. And I can see the rational about saving it for a future museum. When they have 2 or 3 more successful landings, it will then make sense to launch them again.

  9. Re:Cart before horse by gstoddart · · Score: 1

    Just a thought, but so far the one stage they recovered is going to a museum

    As much as anything, SpaceX is a monument to Musk's ego.

    And the first one of these to succeed has as much PR value as it does technical value, probably more. By putting it in a museum his place as a pioneer of private space travel is assured.

    This is as much about waving around his metaphorical penis as it is about space flight. When you're a billionaire doing such things, you get to decide which one goes to the museum.

    --
    Lost at C:>. Found at C.
  10. Re:Cart before horse by Richard_at_work · · Score: 5, Informative

    With all due respect, they can waste their money in whatever fashion they want to - the primary mission is to launch something, if they accomplish that and then want to land the next 100 boosters so Elon Musk can make his own private modern version of Stone Henge out of them, thats his affair.

    Or, you simply realise that landing and reusing are only loosely linked, in that you cannot reuse until you land, but you don't have to reuse just because you land.

  11. Re:Cart before horse by Rei · · Score: 2

    "Wouldn't it be nice if ((Insert Company Name Here)) were to actually, you know, pay dividends with that first dollar that they earned? Just a thought, but so far the one dollar they recovered is going to a frame, but it's totally profit if we wanted to but we don't want to so..."

    Try having more than about four weeks patience here. They landed one, they're just about to land another. Why does an extra four weeks delay in getting a rocket to refurbish and relaunch matter to you so much?

    --
    He's the sort of person who would sell the Red Cross to Dracula.
  12. Multiple Launches by Bing+Tsher+E · · Score: 0

    We want to see multiple launches of the recovered chassis. Anything else is just a process to create more. . . museum pieces. Self congratulatory efforts don't mean that much.

    1. Re:Multiple Launches by Anonymous Coward · · Score: 0

      Yeah, just look at the Spirit of St Louis, they flew that for years afte...... oh wait. Its perfectly natural to hold on to the first successfully returned first stage rocket in human history, especially when you realize they'll (hopefully) shortly be recovering dozens of these things. If they're even halfway reliable at getting them back they'll probably have a dozen of them by the end of this year alone. If it were my decision I would rip the first few of them apart for extensive component testing, put a few more through progressively more strenuous ground/low altitude tests, and use the rest to begin launching low priority cargo (sub orbital science packages, cube sats, etc). Only after showing a reasonable level of reliability would I begin launching actual satellites with them. Expecting them to begin reusing the first stages immediately is like expecting a car manufacturer to design and begin mass production of a car without bothering with the pesky steps of prototypes & crash tests.

  13. Re:Hope they succeed, but its going to be difficul by Immerman · · Score: 1

    I agree. Still, considering how cleanly the last landing went, I think they may have made some substantial improvements in the landing system during their hiatus. I'd give them much better odds than on the previous attempts. Whether they can keep it upright long enough to refuel to fly back to land... well that's a whole different kettle of fish.

    --
    --- Most topics have many sides worth arguing, allow me to take one opposite you.
  14. Re:Cart before horse by Anonymous Coward · · Score: 0

    About half of the financing comes from NASA.

    Admittedly SpaceX can still waste money like in any way they like, but at that point it would be appropriate if NASA reduced the money they put in since there clearly is too much of it floating around.

  15. Re: Cart before horse by Bing+Tsher+E · · Score: 2

    Musk is on his way to being a new Howard Hughes. The Spruce Goose is in the near future. The years of weirdness in the Vegas penthouse can't be that far off. He truly is an admirer of Tesla and wants to follow Tesla's path. Maybe Bezos can be his Alistair Crowley.

  16. Re:Hope they succeed, but its going to be difficul by Rei · · Score: 1

    I really doubt that their first "intent for reflight" rocket will have its maiden reflight from the drone ship. They're surely going to go over it with a fine-toothed comb on land before relaunch.

    The concept of refueling at and relaunching from the drone ship is pretty exciting for the future, mind you. If they really can get the reliability that high and the maintenance that low, it'd enable all sorts of things.

    --
    He's the sort of person who would sell the Red Cross to Dracula.
  17. Re:Cart before horse by PopeRatzo · · Score: 1

    thats his affair.

    Apparently, it's an affair that many Slashdotters believe they are participating in.

    --
    You are welcome on my lawn.
  18. Re:Cart before horse by Kjella · · Score: 4, Interesting

    All we really know is that it landed. We don't know how flight ready it was for another launch, I imagine neither did SpaceX. So this first one I don't think they had any other choice but to strip it completely apart and test everything and then putting it all back together might not make sense. Next landing they probably know what needs replacing and can relaunch the rest. Makes sense to me at least.

    --
    Live today, because you never know what tomorrow brings
  19. Re:Cart before horse by Mysticalfruit · · Score: 2

    Honestly, it's still not going to be that big of a waste... They're going to reuse all the avionics, etc out of that booster. What will end up being the museum piece is the empty shell that landed... I suspect they'll swap out the engines for dummy's and reuse them as well.

    Also at this point recovery isn't factored into the cost of the launch... It's just gravy. They charge $50M because they assume the booster is a write off.

    Once, they start recovering these with regularity, the pricing structure will suddenly change from $50M to $10M for a launch... Then pressing every booster back into service becomes part of the savings.

    --
    Yes Francis, the world has gone crazy.
  20. Re:Cart before horse by Richard_at_work · · Score: 4, Informative

    NASAs money is there as progress payments to fulfil NASA contracts, and the ability to land a booster is not part of NASA's contracts with SpaceX. As long as SpaceX is fulfilling the contracts, NASA cannot complain.

  21. Re:Hope they succeed, but its going to be difficul by stevelinton · · Score: 1

    Whether they can keep it upright long enough to refuel to fly back to land... well that's a whole different kettle of fish.

    Do you actually know that that is the plan? I assumed they'd return the first stages by sea. They need the drone ship because in some configurations and for some missions they can't spare the fuel to fly back to the launch site.

  22. Re:Hope they succeed, but its going to be difficul by Anonymous Coward · · Score: 0

    After seeing the successful landing I have little doubt that they can put the rocket in the bullseye, it landed right on the SpaceX logo. But even moderate seas will probably make things difficult. The first stage is quite tall, it wouldn't take much of a nudge to cause it to topple.

  23. Re:Hope they succeed, but its going to be difficul by Anonymous Coward · · Score: 0

    Musk himself has stated that is the intent, at least in the past. I don't know if it will ever be a practicality though, it looks to me like they're working towards returning the first stage directly to the launch site where possible, and landing them on a drone ship, securing them and then sailing them back to the harbor nearest the launch site where necessary.

  24. Re:Hope they succeed, but its going to be difficul by Immerman · · Score: 1

    It's been a long time so I can't swear to the veracity, but I'm pretty sure that was the plan - land on the drone ship to refuel for the flight home. Figure - after landing at sea you really only have two options:
    - refuel it so it can fly home under it's own power
    - try to balance a 12-story pencil on it's end for the duration of a several hundred mile sea voyage to land (or alternately build all the hardware for a massive robotic "tilting gantry" into the barge so that it can be grabbed along its whole length at wherever it happened to land, and laid on its side, all without damaging it) , and then, once you get to land you have to somehow transfer this massive thing to some sort of overland transportation back to the launch facility. Which quite likely involves building your own docks near the launch facility - you're not towing an inflexible 68m long load around many street corners (picture a single trailer about 4.5 semi trailers long and 1.5 wide).

    Maybe it's me, but I'd need a *really* compelling reason not to just let the thing try to fly itself back home.

    --
    --- Most topics have many sides worth arguing, allow me to take one opposite you.
  25. Re:Hope they succeed, but its going to be difficul by Bruce+Perens · · Score: 1

    It's bottom-heavy when it comes home with the fuel mostly gone. It's a bunch of heavy engines at the bottom and all empty tanks above that. And they vent the remaining LOX right after they land, so there is nothing in the upper tank. They will come aboard and weld shoes over the landing legs, but they don't expect it to fall over before that.

  26. Re:Cart before horse by Penguinisto · · Score: 3, Insightful

    As much as anything, SpaceX is a monument to Musk's ego.

    ...and if his little venture is sufficiently successful in getting mankind into space on a regular basis, let alone as permanent residents, I honestly don't give a damn if it pumps his ego or not.

    --
    Quo usque tandem abutere, Nimbus, patientia nostra?
  27. Re:Hope they succeed, but its going to be difficul by Immerman · · Score: 1

    What's the alternative? Think long and hard on the logisitics of getting a giant "pencil tube" 41m long and 3.6m wide (224 x 12 feet) from a position balanced on end on a platform hundreds of miles away from shore in the open ocean, back to a (logistically) inland landing facility. What sort of infrastructure do you need? And is it worth investing in it if the long term plan is to fly it home anyway?

    Besides, all the hard flying has been done already. It's not like you're doing another second-stage to orbit boost, you're just doing a little hop back home.

    --
    --- Most topics have many sides worth arguing, allow me to take one opposite you.
  28. Re:Hope they succeed, but its going to be difficul by Rei · · Score: 1

    The drone ship is a ship. It moves - it sails to and from port. There are cranes in port. They've already loaded and offloaded rockets from the barge in the past.

    Each "hop" is strain on your rocket, new risk, and using up the lifetime of parts that have limited lifespan. Last I heard they were only hoping for a couple dozen flights out of each rocket.

    That said, flying back has been mentioned in the past as part of the plan. But for the first go-around, that's very unlikely. They're going to want to give it a full rundown back onshore.

    --
    He's the sort of person who would sell the Red Cross to Dracula.
  29. Re:Hope they succeed, but its going to be difficul by Rei · · Score: 1

    It's not to be "balanced" for the return journey - the plan has always been to weld steel shoes to the deck to hold it in place. And it's very bottom-heavy. It's not at all at risk of falling over.

    The way to transport it off the barge is called a crane, it's already been done, and it's not tricky.

    The "compelling reason" is because rocket launches are complex procedures in the best of circumstances, that's anything but the best of circumstances, and they don't even know if the thing is flightworthy. And they certainly don't want their first reuse flight to be a failure.

    Patience. It'll happen eventually.

    --
    He's the sort of person who would sell the Red Cross to Dracula.
  30. Re:Hope they succeed, but its going to be difficul by Rei · · Score: 1

    Oh, and as for the size of the crane you need? This size (right hand side, yellow - the cab is in white for a size comparison). And as for how you transport them? Like this. Same way as they already do.

    --
    He's the sort of person who would sell the Red Cross to Dracula.
  31. Re: Cart before horse by Anonymous Coward · · Score: 0

    There's certainly a lot of this. Most of what SpaceX does is derived from NASA research anyway, but if you want to start a war just mention that to the fanboy worshippers out there.

    Even the vertical landing was done in the 60s--on the moon. Doing it in earth's gravity was beyond our materials and especially computing power until recently. I will applaud SpaceX for dusting the concept off and implementing it with modern engineering because it's damned sure Boeing wasn't interested in doing it, but it's not like this is truly new.

  32. Re: Cart before horse by Anonymous Coward · · Score: 0

    They aren't giving dev money they are paying for commercial delivery contracts and payouts from the commercial crew contract.

    Since the Falcon 9 is developed with SpaceX's money they can spend it however they please

  33. Re:Cart before horse by gstoddart · · Score: 1

    Oh, for sure. I don't disagree at all.

    Which is why I said When you're a billionaire doing such things, you get to decide which one goes to the museum.

    He can stroke his ego and waggle his metaphorical penis all he wants ... he's the one footing the bill.

    I'm not required to like the man. But he is pushing spaceflight forward, and he can crow about it all he wants -- right up to putting stuff in museums if they want it.

    --
    Lost at C:>. Found at C.
  34. Re:Cart before horse by Kjella · · Score: 1

    About half of the financing comes from NASA. Admittedly SpaceX can still waste money like in any way they like, but at that point it would be appropriate if NASA reduced the money they put in since there clearly is too much of it floating around.

    Doesn't work that way, you can't go to Apple and say you make too much money so sell me an iPhone for half the price. Your choices are:
    1) Buy something else
    2) Not buy it
    3) Create it in-house (since you're NASA)

    There are alternatives, but not cheaper ones. Leaving the ISS stranded is not an option. And in-house you get a massive government project with pork to every district. But if you want to start your own rocket company, remove the bloat and undercut SpaceX on price just do it and NASA will be happy to award you contracts. What are you waiting for?

    --
    Live today, because you never know what tomorrow brings
  35. Re:Cart before horse by GNious · · Score: 1

    About half of the financing comes from NASA. Admittedly SpaceX can still waste money like in any way they like, but at that point it would be appropriate if NASA reduced the money they put in since there clearly is too much of it floating around.

    Doesn't work that way, you can't go to Apple and say you make too much money so sell me an iPhone for half the price. Your choices are:
    1) Buy something else
    2) Not buy it
    3) Create it in-house (since you're NASA)

    There are alternatives, but not cheaper ones. Leaving the ISS stranded is not an option. And in-house you get a massive government project with pork to every district. But if you want to start your own rocket company, remove the bloat and undercut SpaceX on price just do it and NASA will be happy to award you contracts. What are you waiting for?

    In business, I have literally seen cases where a customer tells the supplier they are making too much money, and forces a price-reduction on them.
    Just because you cannot do it with Apple doesn't mean large companies and consortia cannot.

    (note: Not arguing about whether NASA should, only that it is done)

  36. Re:Cart before horse by amicusNYCL · · Score: 1

    I don't think they plan on stripping it down, I think they plan some low-power static test fires to verify that it would be able to achieve full thrust again. I don't know if they can do that without stripping it down, but I would imagine that they would generally want to keep it as whole as possible just for posterity.

    It BELONGS in a MUSEUM!

    --
    "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
  37. Re:Cart before horse by Anonymous Coward · · Score: 0

    Since SpaceX is landing those stages on NASA property close to Titusville FL they can complain and exert oversight. In fact I hope they are skeptical and exercising due diligence in making sure that their personnel and the people downwind are safe. I assume that this is why SpaceX had to use those floating pads the first two times they tried this.

  38. Re: Cart before horse by Guspaz · · Score: 1

    Except they're not doing that they've announced that they're going to inspect it and then stick it on 39A and fire it up for a static fire. They do that for all flight rockets, put them on the pad and go through the entire launch process except at the point where a real launch would release the rocket they shut the engines off.

  39. Re:Hope they succeed, but its going to be difficul by Anonymous Coward · · Score: 0

    The engines mass definitely helps bring the center of mass closer to the ground but from what I can find that still puts it at about 1/3 of the way from the bottom of the stage. A few degrees of tip shouldn't be a problem but 5 degrees from a off center landing and another 5 degrees from rough seas could very well do it.

  40. Re:Cart before horse by Richard_at_work · · Score: 2

    SpaceX is renting the use of that property, what they do with it is none of NASA's business so long as they stay within the law.

    They used the barge the first couple of times in order to demonstrate to the FAA they could aim for a small target, which they did. Landing those rockets would have been a bonus.

  41. Re:Cart before horse by Richard_at_work · · Score: 2

    Its also worth noting that NASA is not a regulatory agency, its a development agency - it can rent stuff to SpaceX, it can buy services from SpaceX, but it cant do shit to enforce regulations or oversight on SpaceX.

    SpaceX comes under the remit of the FAA.

  42. Alistair Crowley? by Anonymous Coward · · Score: 0

    Alistair Crowley?

    Which one on Downton Abbey is that?

  43. Re:Cart before horse by Xylantiel · · Score: 1

    SpaceX is *investing* in testing landing to make future launches cost them less. Ironically, NASA wouldn't be allowed to do that because it is "not mission related" even though it is the biggest step forward in access to space in the last 30 years. This complaint about misuse of funds is almost a perfect demonstration for why NASA is better off buying launch service rather than hardware.

  44. Re:Cart before horse by Richard_at_work · · Score: 1

    NASA has *always* purchased launch services, they have never built a booster or vehicle themselves.

    Investing in improvements to launcher knowledge and advancement of technology is 100% part of NASA's mission, just as improving knowledge and technology in the aviation sector is as well - which is why they still carry out experiments in both areas.

  45. Re:Cart before horse by eth1 · · Score: 1

    With all due respect, they can waste their money in whatever fashion they want to - the primary mission is to launch something, if they accomplish that and then want to land the next 100 boosters so Elon Musk can make his own private modern version of Stone Henge out of them, thats his affair.

    Actually, I think SpaceX's primary mission is to go to Mars. The commercial launch business is just to fund the Mars R&D. I'm guessing it's also why SpaceX continues to be privately held - their long-term goal isn't to "maximize shareholder value," it's to put people on Mars.

  46. Re: Cart before horse by Thud457 · · Score: 1

    Eagerly awaiting Musk's Project Azorian.
    Although I might be pretty long in the tooth before we get to hear the story unless somebody burglarizes the wrong warehouse again.

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

  47. Second-stage re-entry by Bruce+Perens · · Score: 2

    No, the second stage really gets to orbit and is beyond propulsive re-entry. It would need a heat-shield and would have to dissipate a lot of speed through heat and ablation. SpaceX has a really good phenolic heat shield technology which they use on Dragon, it's capable of direct ballistic re-entry from Moon or Mars transfer orbits, and can be re-used after the lower-energy re-entry from LEO. But obviously lifting one and the other necessary components reduces the payload weight to orbit.

    Musk continues to talk about re-use being the difference between 100% and 1% of vehicle cost. He doesn't get those economics without second-stage re-use. So, obviously he thinks it's in the future for SpaceX.

    1. Re:Second-stage re-entry by Bruce+Perens · · Score: 1

      Others have mentioned bringing the engines to space for reuse in orbit. This is not a practical plan because of the weight of the fuel which would have to be lifted to feed them. The various electric propulsion schemes make more sense once you're in space because there is less mass to be lifted.

  48. Re:Cart before horse by Anonymous Coward · · Score: 0

    So it can decline to be SpaceX's biggest customer if SpaceX doesn't behave in NASA's interest in a wider sense. This is how governments and big businesses steer less secure organisations all the time: "We want to pay someone for X... it's going to be you if you also do Y, but we're not actually paying for Y, you understand.

  49. Re:Cart before horse by Richard_at_work · · Score: 2

    More than half of the 20 launches so far were either wholly non-NASA (the vast majority) or had a significant non-NASA secondary payload (minority).

    Out of the 29 launches planned for 2016, 22 of them are wholly non-NASA.

    Out of the 16 launches currently penciled in for 2017, 11 of them are wholly non-NASA.

    I dont think SpaceX needs NASA, I think NASA needs SpaceX.

  50. Re:Hope they succeed, but its going to be difficul by Shadwhawk · · Score: 1

    I think they want to do a hop-to-shore once the technology is matured enough, but the balanced-pencil analogy isn't really applicable. The vast majority of the rocket's mass is in the engine cluster; the rest of it is mostly a thin, hollow tube with some empty tanks. IIRC, the original plan with the drone ships was that once the rocket landed, crew would arrive and weld brackets over the landing legs to hold the rocket down, then return to shore and offload with a normal crane. Then tip the rocket onto an appropriate truck, and take it to the refurb facility.

  51. Re: Cart before horse by Anonymous Coward · · Score: 0

    No, they purchased launch vehicles. Only in the last few years have they purchased launch services. They used to buy a truck, which was custom-built to specifications mandated by Congress, and then drive it themselves. Now they give their stuff to FedEx (at least some of the time).

  52. Re:Cart before horse by Richard_at_work · · Score: 1

    You misunderstand - the primary mission each time SpaceX launch is to launch something. What they do after the payload is safe is unrelated to the primary mission.

  53. Re: Cart before horse by Richard_at_work · · Score: 1

    You do realise that the Shuttle was operated by other companies for NASA right? NASA didnt operate it.

    And NASA bought launch services all the time on third party launchers, the Shuttle was far from the only platform NASA used.

  54. WHYWHYWHYWHYWHY by Anonymous Coward · · Score: 0

    This will cost hundreds of astronauts lives.

    There is no way they can continuously keep re-using highly explosive rocket boosters over and over and the cost is outrageous compared to a one-time use booster.

  55. Re:Cart before horse by tsotha · · Score: 1

    In business, I have literally seen cases where a customer tells the supplier they are making too much money, and forces a price-reduction on them.

    You could very easily re-word that to say "We think we can get your product cheaper from someone else, and if you don't drop the price we will do so." It only works if that's actually true, though. When you try to force suppliers who are offering competitive prices to take a cut you get a lot of resistance.

  56. Re:Cart before horse by GNious · · Score: 1

    Just to clarify: I've seen contracts where any cost-saving incurred by the supplier is partially passed on the customer - this is a trait in contracted manufacturing, where you get goods produced as a set, and if the supplier manages to optimise production, the savings are shared.
    Meanwhile, if the supplier cannot hit the target costs, they don't bear all the expenses (only most of it)

  57. Drone on drone action? by pgd7sen · · Score: 1

    Daddy likey!