1101 Posted December 5, 2018 Share Posted December 5, 2018 Does there seem to be 'something' venting from the top of the first stage earlier in the stream? T + 1:48 for example.... Quote Link to comment Share on other sites More sharing options...
Delay Posted December 5, 2018 Share Posted December 5, 2018 Was it a 1-3-1 landing burn? Quote Link to comment Share on other sites More sharing options...
Nightfury Posted December 5, 2018 Share Posted December 5, 2018 oh man, I could feel the wobble of the first stage from my ksp "landings" Just now, Delay said: Now I'm interested. Why did the landing burn not start / falcon "land" in the water? I think the stage 1 decided it couldn't make it safely to land and went into water for safety of ground builds Quote Link to comment Share on other sites More sharing options...
tater Posted December 5, 2018 Share Posted December 5, 2018 2 minutes ago, Delay said: Now I'm interested. Why did the landing burn not start / falcon "land" in the water? The baseline trajectory is set such that it then has to fly to land, the default is in the water as I understand it, so if there is a failure (like today) it hits water. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted December 5, 2018 Share Posted December 5, 2018 4 minutes ago, sevenperforce said: A piece flew off of the booster during coast before entry burn. I saw it float back and clip a grid fin. This is not good for Elon's insistence that powered landings are sustainable for human flight. That's a bit dire from a single, as yet un-diagnosed issue. They mentioned in the feed, that was just ice coming off, nothing that hasn't happened before. Quote Link to comment Share on other sites More sharing options...
Nightfury Posted December 5, 2018 Share Posted December 5, 2018 After a second look on the video of stage 1, the two grid fins in view tried to correct the roll the right way. Question is now: what did the other two fins that time and why has the S1 started rolling at all? Could it be because of strong winds? Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted December 5, 2018 Share Posted December 5, 2018 Elon is saying grid fin hydraulic pump stalled... Quote Link to comment Share on other sites More sharing options...
cubinator Posted December 5, 2018 Share Posted December 5, 2018 There was also a really big ring shaped piece of ice that came off after boostback. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted December 5, 2018 Share Posted December 5, 2018 But it sounds ok! Quote Link to comment Share on other sites More sharing options...
tater Posted December 5, 2018 Share Posted December 5, 2018 Quote Link to comment Share on other sites More sharing options...
hugix Posted December 5, 2018 Share Posted December 5, 2018 There was this beautiful shot of that ring floating next to the first stage. And it looks like one of the fins did not work, maybe its connected, (or maybe not anymore, and that might be the problem) Quote Link to comment Share on other sites More sharing options...
tater Posted December 5, 2018 Share Posted December 5, 2018 Quote Link to comment Share on other sites More sharing options...
Nightfury Posted December 5, 2018 Share Posted December 5, 2018 (edited) The "ring" or whatever Edited December 5, 2018 by Nightfury Quote Link to comment Share on other sites More sharing options...
Delay Posted December 5, 2018 Share Posted December 5, 2018 2 minutes ago, CatastrophicFailure said: But it sounds ok! I doubt they'll reuse this one. Maybe keep it for investigation, but that will probably be it for this booster. Quote Link to comment Share on other sites More sharing options...
cubinator Posted December 5, 2018 Share Posted December 5, 2018 Undamaged? Still, I doubt they'll reuse this one... Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted December 5, 2018 Share Posted December 5, 2018 1 minute ago, Nightfury said: The ring One Ring to Foul them All.... or at least this one... Quote Link to comment Share on other sites More sharing options...
cubinator Posted December 5, 2018 Share Posted December 5, 2018 1 minute ago, tater said: Yesssss! Quote Link to comment Share on other sites More sharing options...
tater Posted December 5, 2018 Share Posted December 5, 2018 1 minute ago, Nightfury said: The ring Looks like ice. Quote Link to comment Share on other sites More sharing options...
Nightfury Posted December 5, 2018 Share Posted December 5, 2018 Just now, cubinator said: Undamaged? Well "normal" landing , just not in the right spot Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted December 5, 2018 Share Posted December 5, 2018 Just now, cubinator said: Undamaged? Still, I doubt they'll reuse this one... They've pulled off undamaged water landings before, but this one they might actually recover. At least they'll get to tear it apart and find out what went 19. Quote Link to comment Share on other sites More sharing options...
Delay Posted December 5, 2018 Share Posted December 5, 2018 Well, look on the bright side: One more successful test of the safety protocols. Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted December 5, 2018 Share Posted December 5, 2018 Well this was certainly more interesting that I would have hoped for. Hopefully it was just that hydraulic thing and not anything else, and hopefully it's an easy fix that won't lead to grounding. From what we can tell, it definitely doesn't sound like a major problem, especially if the booster managed to land. Holy Jeb! Quote Link to comment Share on other sites More sharing options...
Mad Rocket Scientist Posted December 5, 2018 Share Posted December 5, 2018 It looks like the gridfins corrected the right way, then stopped moving while hard over. The it started spinning in the other direction. I wonder if it ran out of nitrogen as well. Pretty crazy how well it landed even while spinning, I wonder if that's a potential way to maintain stability while landing. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted December 5, 2018 Share Posted December 5, 2018 10 minutes ago, Nightfury said: The ring I wonder if that is actually ice. It appeared from the video that the grid fin on the left (in the video shown) stalled in a tilted position, causing a roll and yaw preference. The other grid fins worked to try and counteract it but were unable to do so. 12 minutes ago, tater said: He is overly optimistic. Then again, it WOULD have landed safely, had it come down on the pad. Maybe a touch hard, but it would have managed. So that's encouraging. Quote Link to comment Share on other sites More sharing options...
Nightfury Posted December 5, 2018 Share Posted December 5, 2018 (edited) 2 minutes ago, Ultimate Steve said: Hopefully it was just that hydraulic thing and not anything else, and hopefully it's an easy fix that won't lead to grounding And it looked like the problem was only regarding landing phase, so it may be not even a problem for normal launches Edited December 5, 2018 by Nightfury Quote Link to comment Share on other sites More sharing options...
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