tater Posted February 21, 2018 Share Posted February 21, 2018 Quote Link to comment Share on other sites More sharing options...
tater Posted February 21, 2018 Share Posted February 21, 2018 Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted February 21, 2018 Share Posted February 21, 2018 Awww, man, I was just coming back to post that. Quote Link to comment Share on other sites More sharing options...
tater Posted February 21, 2018 Share Posted February 21, 2018 The winds are at 101.8% of allowed, so the last weather balloon decides if this scrubs. It's an instantaneous launch window in this case, so if the winds don't drop a little, this scrubs. Quote Link to comment Share on other sites More sharing options...
insert_name Posted February 21, 2018 Share Posted February 21, 2018 I hope it doesn't scrub, I don't want to get up this early again Quote Link to comment Share on other sites More sharing options...
tater Posted February 21, 2018 Share Posted February 21, 2018 Quote Link to comment Share on other sites More sharing options...
Nightfury Posted February 21, 2018 Share Posted February 21, 2018 (edited) the webcast is late edit: oh, crap Edited February 21, 2018 by Nightfury Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted February 21, 2018 Share Posted February 21, 2018 Aaaand scrub. Poop. Back to bed now... Quote Link to comment Share on other sites More sharing options...
Nightfury Posted February 21, 2018 Share Posted February 21, 2018 does anybody already know when the next launch attempt is? Quote Link to comment Share on other sites More sharing options...
tater Posted February 21, 2018 Share Posted February 21, 2018 Quote Link to comment Share on other sites More sharing options...
Delay Posted February 21, 2018 Share Posted February 21, 2018 Apparently tomorrow, same time (if you can trust the live stream date plan). Quote Link to comment Share on other sites More sharing options...
Nightfury Posted February 21, 2018 Share Posted February 21, 2018 Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted February 21, 2018 Share Posted February 21, 2018 Forget recovering fairings, SpaceX needs to make a wind-proof rocket. Dammit, now I'm awake... Quote Link to comment Share on other sites More sharing options...
IncongruousGoat Posted February 21, 2018 Share Posted February 21, 2018 1 minute ago, CatastrophicFailure said: Forget recovering fairings, SpaceX needs to make a wind-proof rocket. Dammit, now I'm awake... F9 is, from what I've gathered, unusually weak to wind shear. It's very long and thin, which doesn't help with aerodynamic stress, and its partial balloon design makes the tanks not have much shear strength compared to a standard tank. At least, I think that's the case. Quote Link to comment Share on other sites More sharing options...
PakledHostage Posted February 21, 2018 Share Posted February 21, 2018 (edited) 46 minutes ago, tater said: Sunrise in LA tomorrow is at 6:29 PST, so even though the launch is before sunrise, it isn't early enough for a repeat of the spectacular views of the launch that everyone had a month or so ago. Edited February 21, 2018 by PakledHostage Quote Link to comment Share on other sites More sharing options...
tater Posted February 21, 2018 Share Posted February 21, 2018 Yeah, and I think backlighting is likely more spectacular then even low angle light from the East, as well. 57 minutes ago, IncongruousGoat said: F9 is, from what I've gathered, unusually weak to wind shear. It's very long and thin, which doesn't help with aerodynamic stress, and its partial balloon design makes the tanks not have much shear strength compared to a standard tank. At least, I think that's the case. Of course they fly it back nearly empty, and at some serious AoA as far as I can tell, so I'm unsure about tank strength being such a huge issue. It might also be because of the fairing catch (?). Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted February 21, 2018 Share Posted February 21, 2018 21 minutes ago, tater said: Yeah, and I think backlighting is likely more spectacular then even low angle light from the East, as well. Of course they fly it back nearly empty, and at some serious AoA as far as I can tell, so I'm unsure about tank strength being such a huge issue. It might also be because of the fairing catch (?). The tank is still pressurized on its way back, so the strength should be the same, but its load is much lighter. Quote Link to comment Share on other sites More sharing options...
Delay Posted February 21, 2018 Share Posted February 21, 2018 24 minutes ago, tater said: Of course they fly it back nearly empty, This mission doesn't seem to recover the Falcon. Quote Link to comment Share on other sites More sharing options...
tater Posted February 21, 2018 Share Posted February 21, 2018 2 minutes ago, Delay said: This mission doesn't seem to recover the Falcon. Yeah, that is unrelated to this scrub. My point was that I was unsure what the forces would be going UP due to wind shear, vs the serious stress F9s must go through wind wise on return, given the AoAs they fly (and presumably some of these expendable test landings have pushed that envelope). Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted February 21, 2018 Share Posted February 21, 2018 1 hour ago, tater said: Yeah, that is unrelated to this scrub. My point was that I was unsure what the forces would be going UP due to wind shear, vs the serious stress F9s must go through wind wise on return, given the AoAs they fly (and presumably some of these expendable test landings have pushed that envelope). I don't think it's nearly as high. Remember, also, that the fineness ratio of the F9 on return is much lower, since it is the same width but far shorter. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted February 21, 2018 Share Posted February 21, 2018 4 hours ago, IncongruousGoat said: F9 is, from what I've gathered, unusually weak to wind shear. It's very long and thin, which doesn't help with aerodynamic stress, and its partial balloon design makes the tanks not have much shear strength compared to a standard tank. At least, I think that's the case. So do what any self-respecting KSP player knows and slap MOAR STRUTS! on the thing till it stops noodling. Seriously, it’s not rocket science! oh, wait... Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted February 21, 2018 Share Posted February 21, 2018 Hey, we might have a recovery after all: Or maybe they're just planning ahead in case it survives another water soft landing? Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted February 21, 2018 Share Posted February 21, 2018 ThatEscalatedQuickly.gif Perhaps they're itching to apply what they learned after the FH core kerblooey? Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted February 21, 2018 Share Posted February 21, 2018 26 minutes ago, CatastrophicFailure said: ThatEscalatedQuickly.gif Perhaps they're itching to apply what they learned after the FH core kerblooey? Has anyone had eyes on the booster to see whether they're titanium or aluminum grid fins? Quote Link to comment Share on other sites More sharing options...
magnemoe Posted February 21, 2018 Share Posted February 21, 2018 1 hour ago, CatastrophicFailure said: Hey, we might have a recovery after all: Or maybe they're just planning ahead in case it survives another water soft landing? Nice, an combined landing attempt and test of an ballistic anti ship missile Quote Link to comment Share on other sites More sharing options...
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