Just get the stage transportation truck and dollies. Tow the rocket to a boat launch. Treat it like a bass boat.
Quote from: Oersted on 12/05/2018 08:57 pmQuote from: Johnnyhinbos on 12/05/2018 08:39 pmMonitoring Port Canaveral marine radio. Just heard "they have a line on it by the "nozzles" and need someone to get a photo to prove they got it first."(salvage rights). Also mentioned that they have a sea anchor if needed.Did somebody else than SpaceX get to the rocket first!?Don't think so - I believe it's more of a formality in case someone claims they got to it first (somehow). Boy though, wouldn't that be something if someone else claims salvage rights...
Quote from: Johnnyhinbos on 12/05/2018 08:39 pmMonitoring Port Canaveral marine radio. Just heard "they have a line on it by the "nozzles" and need someone to get a photo to prove they got it first."(salvage rights). Also mentioned that they have a sea anchor if needed.Did somebody else than SpaceX get to the rocket first!?
Monitoring Port Canaveral marine radio. Just heard "they have a line on it by the "nozzles" and need someone to get a photo to prove they got it first."(salvage rights). Also mentioned that they have a sea anchor if needed.
Quote from: Johnnyhinbos on 12/05/2018 09:06 pmQuote from: Oersted on 12/05/2018 08:57 pmQuote from: Johnnyhinbos on 12/05/2018 08:39 pmMonitoring Port Canaveral marine radio. Just heard "they have a line on it by the "nozzles" and need someone to get a photo to prove they got it first."(salvage rights). Also mentioned that they have a sea anchor if needed.Did somebody else than SpaceX get to the rocket first!?Don't think so - I believe it's more of a formality in case someone claims they got to it first (somehow). Boy though, wouldn't that be something if someone else claims salvage rights...I might be wrong, but i was under the impression that space hardware because of ITAR regulations is exempt from normal marine salvage laws and remains property of the manufacturer?
Quote from: Lars-J on 12/05/2018 07:06 pmQuote from: Oersted on 12/05/2018 07:04 pmIf a stuck grid fin caused the roll I would say that the slowdown in speed had more to do with stopping the roll than any transfer of momentum from the leg deployment. At slow speed the reaction control thrusters could counteract the aerodynamic forces.Nope. With the legs extended the "wider momentum" makes it much harder for the RCS fins to affect roll. This is another reason why the legs are deployed at the last second. Sure, lower speed helps in that it makes the stuck grid fins less effective, but note the timing of the leg deploy and the slowdown of the roll. It's all from the legs.It makes sense what you say, but we probably need to wait for an analysis of the telemetry before we can state so categorically what caused what.
Quote from: Oersted on 12/05/2018 07:04 pmIf a stuck grid fin caused the roll I would say that the slowdown in speed had more to do with stopping the roll than any transfer of momentum from the leg deployment. At slow speed the reaction control thrusters could counteract the aerodynamic forces.Nope. With the legs extended the "wider momentum" makes it much harder for the RCS fins to affect roll. This is another reason why the legs are deployed at the last second. Sure, lower speed helps in that it makes the stuck grid fins less effective, but note the timing of the leg deploy and the slowdown of the roll. It's all from the legs.
If a stuck grid fin caused the roll I would say that the slowdown in speed had more to do with stopping the roll than any transfer of momentum from the leg deployment. At slow speed the reaction control thrusters could counteract the aerodynamic forces.
What was it they launched, again? Everything going okay with whatever it was?
You can't claim salvage rights on something that hasn't been officially abandoned at sea (this is the same reason that Spain keeps claiming treasure from Spanish wrecks that are centuries old). I 100% guarantee this booster has not been abandoned by SpaceX.
Regarding adding a second pump and lines vs. making the present one more robust; for F9 operation, I agree with those above who say making the single pump more robust is better. However, there's probably more than F9 at play here; there's BFR to consider. IMHO, they might be going redundant for that (especially BFS) so it'd make sense to go that route now. IMHO, the fact the F9 managed to survive supersonic loss of control and then touch down and end up intact is utterly astounding.
Eagle:I'm going to come around the buoy and get a line on it somehow and shackle it to my line and take it in somewhere. <question from another vessel (GQ? who is also out there?))> My office gave me permission to put a line on it.Me: I can't believe they're willing to approach with so little severe caution. I can't believe you can just pull something so potentially energetic and seemingly unstable or at least in an unknown state into a busy port. Unless maybe communications with it are so good that they were able to bleed pressure and safe it in the normal manner. But then how can you vent the tank pressure without making it structurally vulnerable.?.And then there's the legs. Its seemingly all mariners coming up with a plan. How are they gonna get them out of the way for passage into shallower water?More from the radio:"she's floating well""DIDN'T WILE E. COYOTE PRETTY MUCH BLOW THIS THEORY OUT OF THE WATER""who's coming?""Eagle, Searcher, and three of her little boats""We're just holding the line and drifting with it""S.W. corner of the rocket""Would you be comfortable with me approaching and passing me the line""Yes"
Quote from: mlindner on 12/05/2018 06:50 pmQuote from: Lars-J on 12/05/2018 06:42 pmQuote from: mlindner on 12/05/2018 06:40 pmIt's amazing watching the entire structure flex and bend from the torques being put on the grid finds and then the whole structure twist when it impacts the water but holds together! That's some incredible engineering!I think most of the bending is actually the camera not being firmly enough attached to the stage. (due to G-forces)No, the camera doesn't move with respect to the rocket body, only the fins twist.Look again. Or point out where you see bending. The camera is certainly shaken loose in the water impact.
Quote from: Lars-J on 12/05/2018 06:42 pmQuote from: mlindner on 12/05/2018 06:40 pmIt's amazing watching the entire structure flex and bend from the torques being put on the grid finds and then the whole structure twist when it impacts the water but holds together! That's some incredible engineering!I think most of the bending is actually the camera not being firmly enough attached to the stage. (due to G-forces)No, the camera doesn't move with respect to the rocket body, only the fins twist.
Quote from: mlindner on 12/05/2018 06:40 pmIt's amazing watching the entire structure flex and bend from the torques being put on the grid finds and then the whole structure twist when it impacts the water but holds together! That's some incredible engineering!I think most of the bending is actually the camera not being firmly enough attached to the stage. (due to G-forces)
It's amazing watching the entire structure flex and bend from the torques being put on the grid finds and then the whole structure twist when it impacts the water but holds together! That's some incredible engineering!
Quote from: OxCartMark on 12/05/2018 09:41 pmEagle:I'm going to come around the buoy and get a line on it somehow and shackle it to my line and take it in somewhere. <question from another vessel (GQ? who is also out there?))> My office gave me permission to put a line on it.Me: I can't believe they're willing to approach with so little severe caution. I can't believe you can just pull something so potentially energetic and seemingly unstable or at least in an unknown state into a busy port. Unless maybe communications with it are so good that they were able to bleed pressure and safe it in the normal manner. But then how can you vent the tank pressure without making it structurally vulnerable.?.And then there's the legs. Its seemingly all mariners coming up with a plan. How are they gonna get them out of the way for passage into shallower water?More from the radio:"she's floating well""DIDN'T WILE E. COYOTE PRETTY MUCH BLOW THIS THEORY OUT OF THE WATER""who's coming?""Eagle, Searcher, and three of her little boats""We're just holding the line and drifting with it""S.W. corner of the rocket""Would you be comfortable with me approaching and passing me the line""Yes"Elon tweeted that the flight computer was running after it fell over and that it completed the safing process. [OK, I must be misremembering because I can't find that tweet now. But see below for possibly the RP-1 tank venting.]Also: [tweet]I think the blast of fire you see after it sets down in the water is from venting the fuel tank which must have had some RP-1 vapor and/or droplets which were ignited by something down by the engines. It seems too controlled to have been the tank springing a leak.
Quote from: CJ on 12/05/2018 09:03 pmRegarding adding a second pump and lines vs. making the present one more robust; for F9 operation, I agree with those above who say making the single pump more robust is better. However, there's probably more than F9 at play here; there's BFR to consider. IMHO, they might be going redundant for that (especially BFS) so it'd make sense to go that route now. IMHO, the fact the F9 managed to survive supersonic loss of control and then touch down and end up intact is utterly astounding.A single pump is likely the lightest solution but you can shift the failure probabilities by using smaller redundant pumps which would be more reliable except for the cases where the maximum torque is needed. A simple two pump example: twice the chance of a failure like today but grid fins then operating at half torque instead of failing competently.