Quote from: catdlr on 02/01/2018 12:43 amQuote from: Space Ghost 1962 on 02/01/2018 12:37 amWhy no boom? Haven't they always gone boom, when they hit the water?So much has to go right ... for it not to go boom ...You need to go back to this flight and water landing videos:http://forum.nasaspaceflight.com/index.php?topic=35410.msg1243170#msg1243170Just read the entire thread. Nothing there.For it not to go boom, you have to safe the booster before it falls over. Can think of a hundred ways things can go wrong.Wonder if they've sped up "safing" after landing a lot, and/or expend propellant more completely (like with a 3-engine terminal burn). Then all you might have to wait for is vent pressurant, inhibit FTS, and spool down the turbos as the long lead items.
Quote from: Space Ghost 1962 on 02/01/2018 12:37 amWhy no boom? Haven't they always gone boom, when they hit the water?So much has to go right ... for it not to go boom ...You need to go back to this flight and water landing videos:http://forum.nasaspaceflight.com/index.php?topic=35410.msg1243170#msg1243170
Why no boom? Haven't they always gone boom, when they hit the water?So much has to go right ... for it not to go boom ...
Quote from: ValmirGP on 02/01/2018 12:04 am Better they hurry with some choppers with scuba divers and inflatable buoys if they are serious about getting it back, I think.I dont know the exact landing position but I am sure it is borderline for rotary aircraft carrying and significant load.
Better they hurry with some choppers with scuba divers and inflatable buoys if they are serious about getting it back, I think.
This is a clear mission failure! The booster was to be thrown away and not towed back. In case they manage to get enough missions in the future they'll need another drone ship.
Another amazing, unprecedented sight. Now they'll have to deal with this, because they can't just leave it floating. I can't see how they can get it back into port, though. I doubt the Port would even let them try. - Ed Kyle
Another amazing, unprecedented sight. Now they'll have to deal with this, because they can't just leave it floating. I can't see how they can get it back into port, though. I doubt the Port would even let them try.
Nosferocket 👻
Quote from: Jim on 01/31/2018 11:50 pmQuote from: Grendal on 01/31/2018 11:39 pmQuote from: eriblo on 01/31/2018 11:22 pmI would guess they have thought about how to tow it or at least sink it since they've tried a few soft splashdowns. In this case they also have a deadline with the next launch coming up. It would be ironic if this stage is expended (scuttled) due to FH even though the original reason for splashing it was to protect the droneship rather than FH schedule conflicts... This is one of the ships. They should be able to chain it to the back of the boat and tow it in much quicker than the ASDS moves with a booster on top. They could also have the other ship out there join this one to help with the tow. I would think that recovering this floating booster would become a high priority so they can see what damage is caused by an ocean landing and then being in the ocean. That would be useful data for SpaceX to have.Not really. Towing is going to damage itDo you have any evidence for your claim? Anything other than an argument from authority?
Quote from: Grendal on 01/31/2018 11:39 pmQuote from: eriblo on 01/31/2018 11:22 pmI would guess they have thought about how to tow it or at least sink it since they've tried a few soft splashdowns. In this case they also have a deadline with the next launch coming up. It would be ironic if this stage is expended (scuttled) due to FH even though the original reason for splashing it was to protect the droneship rather than FH schedule conflicts... This is one of the ships. They should be able to chain it to the back of the boat and tow it in much quicker than the ASDS moves with a booster on top. They could also have the other ship out there join this one to help with the tow. I would think that recovering this floating booster would become a high priority so they can see what damage is caused by an ocean landing and then being in the ocean. That would be useful data for SpaceX to have.Not really. Towing is going to damage it
Quote from: eriblo on 01/31/2018 11:22 pmI would guess they have thought about how to tow it or at least sink it since they've tried a few soft splashdowns. In this case they also have a deadline with the next launch coming up. It would be ironic if this stage is expended (scuttled) due to FH even though the original reason for splashing it was to protect the droneship rather than FH schedule conflicts... This is one of the ships. They should be able to chain it to the back of the boat and tow it in much quicker than the ASDS moves with a booster on top. They could also have the other ship out there join this one to help with the tow. I would think that recovering this floating booster would become a high priority so they can see what damage is caused by an ocean landing and then being in the ocean. That would be useful data for SpaceX to have.
I would guess they have thought about how to tow it or at least sink it since they've tried a few soft splashdowns. In this case they also have a deadline with the next launch coming up. It would be ironic if this stage is expended (scuttled) due to FH even though the original reason for splashing it was to protect the droneship rather than FH schedule conflicts...
Quote from: Llian Rhydderch on 02/01/2018 02:12 amQuote from: Jim on 01/31/2018 11:50 pmQuote from: Grendal on 01/31/2018 11:39 pmQuote from: eriblo on 01/31/2018 11:22 pmI would guess they have thought about how to tow it or at least sink it since they've tried a few soft splashdowns. In this case they also have a deadline with the next launch coming up. It would be ironic if this stage is expended (scuttled) due to FH even though the original reason for splashing it was to protect the droneship rather than FH schedule conflicts... This is one of the ships. They should be able to chain it to the back of the boat and tow it in much quicker than the ASDS moves with a booster on top. They could also have the other ship out there join this one to help with the tow. I would think that recovering this floating booster would become a high priority so they can see what damage is caused by an ocean landing and then being in the ocean. That would be useful data for SpaceX to have.Not really. Towing is going to damage itDo you have any evidence for your claim? Anything other than an argument from authority?Obviously none of us has evidence, only best guesses. But it's probably a safe bet the stage wasn't designed to be towed, semi-submerged in seawater, with legs extended.One thing I wonder about is the drag on the submerged legs. The load path of the legs to the body was designed for strength in compression at landing. But in this case there could be tremendous tension on the leg struts and at the strut attach points to the stage. Does one of those attach points fatigue or pull out, breaching the tank and sinking the stage? Or do the struts or fittings just break at the weakest point under tension? Or is it all strong enough to survive days of being dragged through water? Anybody's guess.
Maybe they'll tow it from the octaweb?
Quote from: TorenAltair on 01/31/2018 11:22 pmThis is a clear mission failure! The booster was to be thrown away and not towed back. In case they manage to get enough missions in the future they'll need another drone ship.Why not a carrier (one that is going to be scraped). They can land the booster, one by one and lower them under the deck, refurbish, refuel and hop'em up to LZ.
Quote from: king1999 on 01/31/2018 08:03 pmQuote from: joertexas on 01/31/2018 07:56 pmSomeone posted a picture of both Falcon 9 and FH on the pads. I had an old picture saved that I combined with the new one. These aren't my pictures - I just put them together.The double shuttle picture was obviously a photoshop job. Not much meaning to compare these two pictures.That is wrong
Quote from: joertexas on 01/31/2018 07:56 pmSomeone posted a picture of both Falcon 9 and FH on the pads. I had an old picture saved that I combined with the new one. These aren't my pictures - I just put them together.The double shuttle picture was obviously a photoshop job. Not much meaning to compare these two pictures.
Someone posted a picture of both Falcon 9 and FH on the pads. I had an old picture saved that I combined with the new one. These aren't my pictures - I just put them together.
I wonder if temporarily leasing a barge with crane to pull the rocket stage out of water might be the best solution - assuming of course that such a barge/ship and team can be mobilized in a day or two.
Quote from: edkyle99 on 02/01/2018 01:52 amAnother amazing, unprecedented sight. Now they'll have to deal with this, because they can't just leave it floating. I can't see how they can get it back into port, though. I doubt the Port would even let them try. Remember, the original plan when they were testing water landings (before they had the droneship) was to tow them back, but none survived the tip-over event. So they must have had some sort of plan at the time.
Quote from: Galactic Penguin SST on 02/01/2018 02:37 amI wonder if temporarily leasing a barge with crane to pull the rocket stage out of water might be the best solution - assuming of course that such a barge/ship and team can be mobilized in a day or two.Move the Port Canaveral crawler crane onto OCISLY with center of gravity a bit offset. Tow it out to meet the GO sisters and B1032. Tie onto the booster lift point, hoist away - with care. Lower legs to ASDS deck to stop it swinging. Tow OCISLY back into port, crawl crane back onto dockside, carrying booster. OCISLY back to sea just in time for FH.