Scotius Posted June 23, 2019 Share Posted June 23, 2019 2 hours ago, tater said: Revert to VAB. Solution for wimps. Better send a second spaceship with detachable power pack (stack of batteries, four solar panels and one RTG for good measure) to rendez-vous in Mun Moon orbit, then attach the power pack to the docking port of the crew module. Then you can proceed with the mission. I did it once, way before KIS\KAS mod was born - it turned out to be ridiculous but very memorable thing Quote Link to comment Share on other sites More sharing options...
tater Posted June 23, 2019 Author Share Posted June 23, 2019 LOL. My only use of revert is on the pad, before launch. I invariably hit launch, and before I can even render the pad completely I realize, "I forgot to change the default crew!" or "I forgot to add the new experiment that the last flight of this stack enabled with its science gains!" etc. I'd have gone nuts long ago, otherwise, lol. Quote Link to comment Share on other sites More sharing options...
tater Posted June 28, 2019 Author Share Posted June 28, 2019 Quote Link to comment Share on other sites More sharing options...
tater Posted July 8, 2019 Author Share Posted July 8, 2019 Quote Link to comment Share on other sites More sharing options...
Nightside Posted July 8, 2019 Share Posted July 8, 2019 On 6/28/2019 at 11:56 AM, tater said: Has Atlas always been this shiny rose gold color? I thought it was more of a matte foam finish. Quote Link to comment Share on other sites More sharing options...
tater Posted July 9, 2019 Author Share Posted July 9, 2019 (edited) 13 minutes ago, Nightside said: Has Atlas always been this shiny rose gold color? I thought it was more of a matte foam finish. Edited July 9, 2019 by tater Quote Link to comment Share on other sites More sharing options...
Guest Posted July 9, 2019 Share Posted July 9, 2019 It's unpainted tank. There's no point in foam on a kerolox rocket, only LH2 and LHe actually require insulation. LOX and LCH4 tanks ice up, and ice is a pretty good heat insulator (which is also how igloos work). With LH2 and LHe, you get nitrogen and oxygen dew instead, which are not only very bad heat insulators (being liquid at those conditions), the latter is a serious fire hazard because you can get pockets of it once it evaporates back, and the former isn't good for structural pieces, either. Hence, for those two, you want some form of insulation. Quote Link to comment Share on other sites More sharing options...
tater Posted July 9, 2019 Author Share Posted July 9, 2019 (edited) ooops Edited July 9, 2019 by tater Quote Link to comment Share on other sites More sharing options...
Nightside Posted July 9, 2019 Share Posted July 9, 2019 @tater & @Dragon01, I think I have this diagram as my mental image of the Atlas V. It isn't as shiny as in diagram form. Quote Link to comment Share on other sites More sharing options...
wumpus Posted July 9, 2019 Share Posted July 9, 2019 1 hour ago, Dragon01 said: It's unpainted tank. There's no point in foam on a kerolox rocket, only LH2 and LHe actually require insulation. LOX and LCH4 tanks ice up, and ice is a pretty good heat insulator (which is also how igloos work). With LH2 and LHe, you get nitrogen and oxygen dew instead, which are not only very bad heat insulators (being liquid at those conditions), the latter is a serious fire hazard because you can get pockets of it once it evaporates back, and the former isn't good for structural pieces, either. Hence, for those two, you want some form of insulation. Is this still true for the temperatures that SpaceX currently use? It makes a lot of sense at the point LOX turns liquid, but they are using just over the freezing points of LOX and kerosene (and presumably nearly solid methane as well). I'd expect oxygen dew on an oxygen tank that nearly has oxygen ice cubes inside (much like water dew on a glass that is 2-3C). Quote Link to comment Share on other sites More sharing options...
Nightside Posted July 9, 2019 Share Posted July 9, 2019 2 hours ago, wumpus said: Is this still true for the temperatures that SpaceX currently use? It makes a lot of sense at the point LOX turns liquid, but they are using just over the freezing points of LOX and kerosene (and presumably nearly solid methane as well). I'd expect oxygen dew on an oxygen tank that nearly has oxygen ice cubes inside (much like water dew on a glass that is 2-3C). Well that's SpaceX's problem, not ULA's. But for an extended Starship voyage, they would certainly need some sort of insulation. Quote Link to comment Share on other sites More sharing options...
tater Posted July 12, 2019 Author Share Posted July 12, 2019 Quote Link to comment Share on other sites More sharing options...
Guest Posted July 12, 2019 Share Posted July 12, 2019 Erm... is taking photos of military satellites... legal? I’d imagine the sat in the pic is the aforementioned military comms sat since it’s all black XD Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted July 12, 2019 Share Posted July 12, 2019 (edited) 2 hours ago, Dale Christopher said: Erm... is taking photos of military satellites... legal? I’d imagine the sat in the pic is the aforementioned military comms sat since it’s all black XD Well, if they have permission to be there and take photos, then it's legal. If not, it's a problem for whoever took the photo. The strangest things can be considered sensitive. One engine I worked on had unclassified blueprints, and if you showed the outer lines of the flowpath that was unclassified, or if you showed the inner lines of the flowpath that was unclassified, but if you showed them both together that was classified as Confidential. Edited July 12, 2019 by mikegarrison Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted July 12, 2019 Share Posted July 12, 2019 5 hours ago, mikegarrison said: if you showed the outer lines of the flowpath that was unclassified, or if you showed the inner lines of the flowpath that was unclassified, but if you showed them both together that was classified as Confidential. Spoiler Quote Link to comment Share on other sites More sharing options...
tater Posted July 31, 2019 Author Share Posted July 31, 2019 Quote Link to comment Share on other sites More sharing options...
Nightside Posted July 31, 2019 Share Posted July 31, 2019 26 minutes ago, tater said: Looks pretty good but I’m not sure about all those zip-ties holding it together. Quote Link to comment Share on other sites More sharing options...
MinimumSky5 Posted July 31, 2019 Share Posted July 31, 2019 3 hours ago, Nightside said: Looks pretty good but I’m not sure about all those zip-ties holding it together. Its a cost saving measure, honest! They need to compete with SpaceX somehow. Quote Link to comment Share on other sites More sharing options...
tater Posted July 31, 2019 Author Share Posted July 31, 2019 Quote Link to comment Share on other sites More sharing options...
tater Posted August 1, 2019 Author Share Posted August 1, 2019 Quote Link to comment Share on other sites More sharing options...
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Cheif Operations Director Posted August 7, 2019 Share Posted August 7, 2019 Saw it through binoculars today, looks pretty good from about 3 miles away. Good to know the weather will be good, do you know where to find those reports? Quote Link to comment Share on other sites More sharing options...
tater Posted August 8, 2019 Author Share Posted August 8, 2019 Live in 5 hours: Quote Link to comment Share on other sites More sharing options...
Cheif Operations Director Posted August 8, 2019 Share Posted August 8, 2019 Live Quote Link to comment Share on other sites More sharing options...
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