StupidAndy Posted January 16, 2018 Share Posted January 16, 2018 1 hour ago, Shpaget said: I've been pestering my colleagues at work for a week now with some rocket stuff thing. only a week? I've been doing it for 2 straight years! Quote Link to comment Share on other sites More sharing options...
tater Posted January 16, 2018 Share Posted January 16, 2018 Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted January 16, 2018 Share Posted January 16, 2018 [manic uncontrolled twitching and slight smoke from ears] Quote Link to comment Share on other sites More sharing options...
StarStreak2109 Posted January 16, 2018 Share Posted January 16, 2018 Oh to be a fly on the wall at SpaceY-Headquarters.... Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted January 16, 2018 Share Posted January 16, 2018 Seriously, this is making me a bit nervous... Quote Link to comment Share on other sites More sharing options...
tater Posted January 16, 2018 Share Posted January 16, 2018 They are working issues from having it vertical on the pad these last couple times. better safe than sorry, they need this pad for crew, after all. Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted January 16, 2018 Share Posted January 16, 2018 I understand they like to keep their cards close to the vest, but it’d be nice to know what issue(s) they’re working. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted January 17, 2018 Share Posted January 17, 2018 Word is they've already fixed the iffy launch clamp, and the last WDR saw full prop loading, so...ground ignition systems? Fuel pressures? It's anyone's guess. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted January 17, 2018 Share Posted January 17, 2018 2 hours ago, StrandedonEarth said: I understand they like to keep their cards close to the vest, but it’d be nice to know what issue(s) they’re working. This. Are they flushing out gremlins at this point or chasing real problems. The delays seem to be getting longer, which is more than a little... disconcerting. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted January 17, 2018 Share Posted January 17, 2018 Interesting article Here (courtesy of my lovely wife) that actually answers some of my own questions, if speculatively. I never considered the thermal expansion/contraction of a thing that size, they estimate a 45-meter F9 core could change in size by several inches when fully fueled, due to thermal... stuff. Now stick three of them together, each just a little different, with really strong struts. Yeah... kinda makes sense why even fueling the beast is a learning experiment. But still, a pox upon my own reason and logic! Quote Link to comment Share on other sites More sharing options...
NSEP Posted January 17, 2018 Share Posted January 17, 2018 (edited) It would also be nice if they delayed it further out, like in 2/3 weeks, so the crew has time to fix that thing and the fanboys don't have to be disappointed all day long. Oh and if say the static fire comes earlier than expected, the fanboys will be extra happy, right you guys? Edited January 17, 2018 by NSEP Quote Link to comment Share on other sites More sharing options...
RCgothic Posted January 17, 2018 Share Posted January 17, 2018 I believe the reason for the long delay this time is that the range needs to be clear for the prep for an Atlas launch today and tomorrow. Quote Link to comment Share on other sites More sharing options...
tater Posted January 17, 2018 Share Posted January 17, 2018 Quote Link to comment Share on other sites More sharing options...
sh1pman Posted January 17, 2018 Share Posted January 17, 2018 5 minutes ago, tater said: He talking about Zuma launch? Quote Link to comment Share on other sites More sharing options...
tater Posted January 17, 2018 Share Posted January 17, 2018 Yes. https://science.house.gov/legislation/hearings/subcommittee-space-hearing-update-nasa-commercial-crew-systems-development Quote Link to comment Share on other sites More sharing options...
sh1pman Posted January 17, 2018 Share Posted January 17, 2018 2 minutes ago, tater said: Yes. Well, whatever happened to Zuma is its own fault then. Also, somehow I thought that Crew Dragon would fly with 7 astronauts... Quote Link to comment Share on other sites More sharing options...
tater Posted January 17, 2018 Share Posted January 17, 2018 Test stand incident was a procedural issue in testing, nothing to do with the Merlin. Can't detail Zuma failure because of classification, but nothing failed on their end. F9 can make orbit with 2 engine outs. That's under oath, as well. Quote Link to comment Share on other sites More sharing options...
tater Posted January 17, 2018 Share Posted January 17, 2018 Congress critters go over SpaceX with a fine toothed comb, but ignore the fact that CST-100 will fly on a stack that is NOT stable, as the Centaur with 2 engines has only flown once, right? Quote Link to comment Share on other sites More sharing options...
tater Posted January 17, 2018 Share Posted January 17, 2018 Hans rightly pointed out that much of the crew vehicle risk is effectively the time on orbit issue----debris strikes in orbit taking out critical hardware---not vehicle malfunction issued. Quote Link to comment Share on other sites More sharing options...
magnemoe Posted January 17, 2018 Share Posted January 17, 2018 1 hour ago, sh1pman said: Well, whatever happened to Zuma is its own fault then. Also, somehow I thought that Crew Dragon would fly with 7 astronauts... it has seating for 7, think spare space will be used for cargo. Wonder if it will still have seating in some for for 7? thinking of an evacuation situation, yes you could probably go without seats just try to find some padding if critical. Quote Link to comment Share on other sites More sharing options...
tater Posted January 17, 2018 Share Posted January 17, 2018 Sending 7 crew to station would apparently double the science done, as 5 out of 6 crew days is spend on maintaining ISS, and other non-science activity. Quote Link to comment Share on other sites More sharing options...
NSEP Posted January 17, 2018 Share Posted January 17, 2018 2 hours ago, sh1pman said: Also, somehow I thought that Crew Dragon would fly with 7 astronauts... Dragon V2 can fly with 7 Astronauts. But when you send 7 Astronauts to the ISS, and combine that with the non-US crew you got a pretty full station. I don't know if the Dragon has bunk beds or sleeping bags like the shuttle has. Heck, i don't know of the full crew-capacity version even has a toilet. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted January 17, 2018 Share Posted January 17, 2018 8 minutes ago, NSEP said: Dragon V2 can fly with 7 Astronauts. But when you send 7 Astronauts to the ISS, and combine that with the non-US crew you got a pretty full station. I don't know if the Dragon has bunk beds or sleeping bags like the shuttle has. Heck, i don't know of the full crew-capacity version even has a toilet. That’s why they wear space diapers. Bigelow wants to put a BA-330 on the station for testing, so throw some berth space in and use that to up the capacity. Assuming the life support can handle it, of course. Sort of a chicken-or-egg thing, no sense having a higher crew capacity if they can’t fit in the ferry, no sense making room in the ferry if there’s no berths on the station.... Quote Link to comment Share on other sites More sharing options...
tater Posted January 17, 2018 Share Posted January 17, 2018 All US crew launches to ISS will have one cosmonaut aboard, and all Soyuz crew launches to station will have one NASA Astronaut aboard. This is because ISS has Russian systems that cosmonauts always operate, and it has NASA systems that only NASA personnel operate. The station could operate with 7 people, it might in fact be the ideal number due to how much time is wasted on other activities. Quote Link to comment Share on other sites More sharing options...
tater Posted January 17, 2018 Share Posted January 17, 2018 Quote Link to comment Share on other sites More sharing options...
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