Lift it with two cranes and keep it horizontal would be my guess - but that would need the fourth leg either removed already or remove it while the booster is hanging.Then- put the stage down horizontally to get the remaining legs off and then lift it onto the transporteror- remove the other legs while it's hanging from the crane and then put it on the transporteror - put it on the transport and the remove the other three legs (which may be impossible depending how the attachment on the transporter works) Arguably they could sling from the grid fins (if all four are still there) but unless they know the fins can take the weight, that could be risky. It would also be possible to attach ropes to the octaweb, run the ropes to a single point above the top of the stage and then sling round the stage under the grid fines to anchor the ropes against the side of the booster - I've seen boat masts lifted that way, but I'm not sure I'd like to try it with a rocket booster!
Quote from: pb2000 on 12/07/2018 03:54 pmI guess the lifting cap is out of the question on this one... how the heck are they gonna get it on the stand?There was mention on the radio of a pair of cranes. Sounds like they'll sling it out, and I guess remove the legs with another crane and cherry-picker, then place it directly on the trailer.
I guess the lifting cap is out of the question on this one... how the heck are they gonna get it on the stand?
Quote from: joncz on 12/07/2018 03:59 pmQuote from: pb2000 on 12/07/2018 03:54 pmI guess the lifting cap is out of the question on this one... how the heck are they gonna get it on the stand?There was mention on the radio of a pair of cranes. Sounds like they'll sling it out, and I guess remove the legs with another crane and cherry-picker, then place it directly on the trailer. With the interstage damaged, how are they going to put it on the transporter? The attachment ring runs around the interstage.
Quote from: Wolfram66 on 12/07/2018 01:58 pmAfter the last time they soft landed a booster in the water, they should have had a contingency plan in place.I agree. The contingency plan should be to tow it out of sea lanes and to provide a means to safely sink it. This thing is probably costing them more money to salvage than it would cost to pull to deep water and sink. Or, better yet, modify the software to do a crash landing instead of a soft landing in such instances. - Ed Kyle
After the last time they soft landed a booster in the water, they should have had a contingency plan in place.
Quote from: chrisking0997 on 12/07/2018 04:04 pmQuote from: joncz on 12/07/2018 03:59 pmQuote from: pb2000 on 12/07/2018 03:54 pmI guess the lifting cap is out of the question on this one... how the heck are they gonna get it on the stand?There was mention on the radio of a pair of cranes. Sounds like they'll sling it out, and I guess remove the legs with another crane and cherry-picker, then place it directly on the trailer. With the interstage damaged, how are they going to put it on the transporter? The attachment ring runs around the interstage. I would guess either some cribbing or bags just back of the interstage and then a lot of bungy cords so it doesn't roll off.
Quote from: edkyle99 on 12/07/2018 02:13 pmQuote from: Wolfram66 on 12/07/2018 01:58 pmAfter the last time they soft landed a booster in the water, they should have had a contingency plan in place.I agree. The contingency plan should be to tow it out of sea lanes and to provide a means to safely sink it. This thing is probably costing them more money to salvage than it would cost to pull to deep water and sink. Or, better yet, modify the software to do a crash landing instead of a soft landing in such instances. - Ed KyleI don't think this recovery is about saving money, I think it's about collecting information.
Quote from: mme on 12/07/2018 04:15 pm...I don't think this recovery is about saving money, I think it's about collecting information.Ahem... Grid fins. What people forget is that now that SpaceX has a higher confidence of getting the boosters back, they are putting more expensive components on them. Grid fins being the prime example, but there is probably more components on there that they will use on another flight.
...I don't think this recovery is about saving money, I think it's about collecting information.
Why didn't it rupture and blow up when it tipped over? From the blooper reel, it looks like the first stage blew up on all previous failed landings (even ones in the water) when it tipped over.Forgive me if this has already been asked and answered, but I looked back through two days of posts and didn't see it.
Quote from: mme on 12/07/2018 04:15 pmQuote from: edkyle99 on 12/07/2018 02:13 pmQuote from: Wolfram66 on 12/07/2018 01:58 pmAfter the last time they soft landed a booster in the water, they should have had a contingency plan in place.I agree. The contingency plan should be to tow it out of sea lanes and to provide a means to safely sink it. This thing is probably costing them more money to salvage than it would cost to pull to deep water and sink. Or, better yet, modify the software to do a crash landing instead of a soft landing in such instances. - Ed KyleI don't think this recovery is about saving money, I think it's about collecting information.Ahem... Grid fins. What people forget is that now that SpaceX has a higher confidence of getting the boosters back, they are putting more expensive components on them. Grid fins being the prime example, but there is probably more components on there that they will use on another flight.
Quote from: Hauerg on 12/07/2018 08:57 amAt least some of the grid fins will fly again. (They are expensive as hell.)This recovery effort is worth it just to get the fins back.As for the rest of it, the damage caused by immersion in sea water can be massively reduced by action taken immediately after recovery - for something like a boat engine, that means strip down, wash down and coat in oil as soon as practically possible. If things are left, even for a couple of days, that's usually enough to finish them off. Anything electrical will be a write-off straight away. For example, water gets down the inside of wires and that's made worse if there's any current in it when it's immersed: even though wires might look okay, they can fail 6, 12, 18 months later. Not the end of the world if it's a little outboard motor on a boat, but a big problem if it's part of a rocket.
At least some of the grid fins will fly again. (They are expensive as hell.)
We always here about how many times these rockets can be reflown, but has it ever been stated or predicted how many times the titanium grid fins can be reflown without replacement? That would really put into perspective how valuable they are to SpaceX to get back
Quote from: Lars-J on 12/07/2018 04:21 pmQuote from: mme on 12/07/2018 04:15 pmQuote from: edkyle99 on 12/07/2018 02:13 pmQuote from: Wolfram66 on 12/07/2018 01:58 pmAfter the last time they soft landed a booster in the water, they should have had a contingency plan in place.I agree. The contingency plan should be to tow it out of sea lanes and to provide a means to safely sink it. This thing is probably costing them more money to salvage than it would cost to pull to deep water and sink. Or, better yet, modify the software to do a crash landing instead of a soft landing in such instances. - Ed KyleI don't think this recovery is about saving money, I think it's about collecting information.Ahem... Grid fins. What people forget is that now that SpaceX has a higher confidence of getting the boosters back, they are putting more expensive components on them. Grid fins being the prime example, but there is probably more components on there that they will use on another flight.They'll want to recover the COPV v2.0s, certainly
Quote from: Greg Hullender on 12/07/2018 04:30 pmWhy didn't it rupture and blow up when it tipped over? From the blooper reel, it looks like the first stage blew up on all previous failed landings (even ones in the water) when it tipped over.Forgive me if this has already been asked and answered, but I looked back through two days of posts and didn't see it.the sea state probably has a lot to do with it.
