Nuke Posted September 27 Share Posted September 27 (edited) 23 hours ago, tater said: They never get any lightning, way more sonic booms id wager that people who write environmental regulations have never gone camping. if they did id wager it was at a campground and not in actual wilderness. if you can get cell reception you are not camping. Edited September 27 by Nuke Quote Link to comment Share on other sites More sharing options...
tater Posted September 27 Share Posted September 27 SpaceX posted on YouTube as well (nice HD): Quote Link to comment Share on other sites More sharing options...
darthgently Posted September 27 Share Posted September 27 Reportedly, this was divulged in the Crew-9 press conference that I haven’t watched yet Quote Link to comment Share on other sites More sharing options...
tater Posted September 27 Share Posted September 27 (edited) At some point where they decide to decommission a cargo Dragon they should not use chutes and land it on a drone ship. Edited September 28 by tater Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted September 27 Share Posted September 27 20 minutes ago, tater said: At some point where they decide ti decommission a cargo Dragon they should not use chutes and land it on a drone ship. I didn’t think cargos Dragons were actually equipped with SuperDracos, but maybe the new versions are. Or they could use an end-of-life full crew Dragon for cargo. Quote Link to comment Share on other sites More sharing options...
tater Posted September 28 Share Posted September 28 37 minutes ago, StrandedonEarth said: I didn’t think cargos Dragons were actually equipped with SuperDracos, but maybe the new versions are. Or they could use an end-of-life full crew Dragon for cargo. Oh, that's right, I forgot they dumped them on the cargo variant. Quote Link to comment Share on other sites More sharing options...
darthgently Posted September 28 Share Posted September 28 1 hour ago, tater said: At some point where they decide to decommission a cargo Dragon they should not use chutes and land it on a drone ship. And then on a pad at KSC. That would drop the price of resupply even more. I’m also hoping that for crew backup they move from “if all chutes fail” to “thrust enough to account for any lost or tangled chutes”. In other words the super dracos would throttle up enough to keep the velocity nominal no matter the cause Quote Link to comment Share on other sites More sharing options...
cubinator Posted September 28 Share Posted September 28 (edited) 1 hour ago, darthgently said: And then on a pad at KSC. That would drop the price of resupply even more. I’m also hoping that for crew backup they move from “if all chutes fail” to “thrust enough to account for any lost or tangled chutes”. In other words the super dracos would throttle up enough to keep the velocity nominal no matter the cause Not sure if starting up engines would bring the risk matrix lower or higher in the case of, say, 1 lost chute, when the impact velocity is not that high Also I'm pretty sure starting up even just a pair of them would probably have enough oomph to counter all of the parachutes, since they're built to tear the capsule + full trunk away from the rocket at a pretty good clip. Edited September 28 by cubinator Quote Link to comment Share on other sites More sharing options...
tater Posted September 28 Share Posted September 28 Can't lie, in my head since reading about the contingency as an earworm: Also, Crew-9 on the pad: Quote Link to comment Share on other sites More sharing options...
darthgently Posted September 28 Share Posted September 28 6 hours ago, cubinator said: Not sure if starting up engines would bring the risk matrix lower or higher in the case of, say, 1 lost chute, when the impact velocity is not that high Also I'm pretty sure starting up even just a pair of them would probably have enough oomph to counter all of the parachutes, since they're built to tear the capsule + full trunk away from the rocket at a pretty good clip. I think they were designed to be independently deep throttled for controlled propulsive safe landing velocity and orientation. So I don’t think partial chutes would be a problem from a velocity pov, but yeah, not clear wrt correcting bad orientation from partial chutes. It seems doable given the original use case with maybe some hardware and probably some software changes 6 hours ago, cubinator said: I'm pretty sure starting up even just a pair of them would probably have enough oomph to counter all of the parachutes, since they're built to tear the capsule + full trunk away from the rocket at a pretty good clip. For LES purposes, full throttle, yes, but my understanding is they are deep throttlable from their original propulsive landing use case. They are basically RCS on steroids from a control pov in my imagination Quote Link to comment Share on other sites More sharing options...
darthgently Posted September 28 Share Posted September 28 One last thought, I’m pretty sure they can do fairly rapid bang-bang control also, like RCS at deepest throttle Quote Link to comment Share on other sites More sharing options...
AckSed Posted September 28 Share Posted September 28 16 hours ago, tater said: This is pretty cool. Totally. ...the beat of that thruster firing was unexpectedly good. With the violin recital, I think we can call this the most musical flight of Dragon so far. :-) Quote Link to comment Share on other sites More sharing options...
magnemoe Posted September 28 Share Posted September 28 9 minutes ago, tater said: Can't lie, in my head since reading about the contingency as an earworm: This but scaled up 10 times. Cube square law works in you advantage here. Quote Link to comment Share on other sites More sharing options...
tater Posted September 28 Share Posted September 28 Quote Link to comment Share on other sites More sharing options...
tater Posted September 28 Share Posted September 28 Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted September 28 Share Posted September 28 There was a nice bit from Adam Savage on the launch stream. The launch stream: Quote Link to comment Share on other sites More sharing options...
tater Posted September 28 Share Posted September 28 (edited) liftoff Edited September 28 by tater Quote Link to comment Share on other sites More sharing options...
darthgently Posted September 28 Share Posted September 28 HOS Ridgewind, the craned recovery ship used to recover the aft outer engine ring and assorted parts of B11 is apparently heading back to the recovery zone Quote Link to comment Share on other sites More sharing options...
darthgently Posted September 29 Share Posted September 29 A Chinese container ship is on a course that will have it near B11 before Hos Ridgeway. I’m imagining it opening up like the rocket in that Bond movie (Moonraker? No, the other one?) and swallowing the other craft. But in this case the bottom opens and they scoop Raptors into the hold as the pass over, ha ha Quote Link to comment Share on other sites More sharing options...
tater Posted September 29 Share Posted September 29 Quote Link to comment Share on other sites More sharing options...
darthgently Posted September 29 Share Posted September 29 Hos Ridgewind on station at 25.96773, -96.5544 Quote Link to comment Share on other sites More sharing options...
darthgently Posted September 29 Share Posted September 29 Quote Link to comment Share on other sites More sharing options...
Pthigrivi Posted September 29 Share Posted September 29 9 hours ago, darthgently said: A Chinese container ship is on a course that will have it near B11 before Hos Ridgeway. I’m imagining it opening up like the rocket in that Bond movie (Moonraker? No, the other one?) and swallowing the other craft. But in this case the bottom opens and they scoop Raptors into the hold as the pass over, ha ha Id be surprised if China doesn’t have something like the USS Parche: https://www.popularmechanics.com/military/navy-ships/a37260563/uss-parche-tiny-ski-legs/ Quote Link to comment Share on other sites More sharing options...
cubinator Posted September 29 Share Posted September 29 I saw ISS and Dragon last night, really cool to see Dragon going faster through the sky and hitting the shadow much earlier because it's lower. Quote Link to comment Share on other sites More sharing options...
Cracktacular Posted September 29 Share Posted September 29 On 9/23/2024 at 8:48 PM, PakledHostage said: Possibly, but something the size of a skyscraper falling at the speed of sound (and containing the unburned fuel that was supposed to have slowed said skyscraper to a stop) would pack quite a punch when it crashed after the engines failed to relight... There are only so many contingencies they can realistically design for. I don't agree. The physical dimensions of an object do not imply anything about the density of the atoms that comprise it. Remember, this is a vehicle that literally fights gravity...it is necessary that they remove as much mass as possible. Quote Link to comment Share on other sites More sharing options...
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