mikegarrison Posted January 10, 2018 Share Posted January 10, 2018 1 hour ago, wumpus said: I once had a coworker who did "work" "upriver" (as a contractor). That was all we were supposed to know. Then we were told to forget about the "up river" part (presumably it meant NRO instead of CIA, but with the amount of contractors all over VA I doubt anyone could say for sure). I once knew a guy who did "material science". That's all he could say about it, but he did say it took six months to get cleared to work in his lab. Quote Link to comment Share on other sites More sharing options...
PakledHostage Posted January 10, 2018 Share Posted January 10, 2018 I can't figure out how old this is but it was only posted to YouTube about a week ago and may be interesting for some of you: Quote Link to comment Share on other sites More sharing options...
KSK Posted January 10, 2018 Share Posted January 10, 2018 14 hours ago, CatastrophicFailure said: Some new (here) info on Wednesday’s FH test, as per NasaSpaceFlight: Test window opens at 1300 EST, 1100PST, 0000 UTC. It’s planned to be a wet dress rehearsal, first time the monster has actually been fully fueled. If everything goes well with that, they may proceed directly to a static fire... "And if the hold-downs aren't up to the job, we'll be moving right on through to a launch situation. Either way it's guaranteed to be exciting." -- Elon Musk. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted January 10, 2018 Share Posted January 10, 2018 4 hours ago, KSK said: "And if the hold-downs aren't up to the job, we'll be moving right on through to a launch situation. Either way it's guaranteed to be exciting." -- Elon Musk. Oh god what a lovely quote. Quote Link to comment Share on other sites More sharing options...
KSK Posted January 10, 2018 Share Posted January 10, 2018 (edited) 8 minutes ago, sevenperforce said: Oh god what a lovely quote. Umm, I figure you all realised this anyway but in the interest of complete transparency, I should probably point out that the first sentence is fiction... I agree that the second sentence is a lovely quote though! Edited January 10, 2018 by KSK Quote Link to comment Share on other sites More sharing options...
PB666 Posted January 10, 2018 Share Posted January 10, 2018 8 hours ago, PakledHostage said: I can't figure out how old this is but it was only posted to YouTube about a week ago and may be interesting for some of you: I don't know if it interesting. It does seem to me that he sets his goals low . . . . like wow if it gets off the launch pad without damaging it, that's a win (really). I would think that if there was significant risk of damaging the launch pad that they would not attempt to launch. Mach shock on the boosters Lower static atmospheric pressure (accelerate slower between 250 and 280 m/s) Increase Sears-Haack shape of the booster nose cone Decrease rate of turn before max Q. Quote Link to comment Share on other sites More sharing options...
cubinator Posted January 10, 2018 Share Posted January 10, 2018 4 hours ago, KSK said: "And if the hold-downs aren't up to the job, we'll be moving right on through to a launch situation. Either way it's guaranteed to be exciting." -- Elon Musk. More like Elon Kerman. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted January 10, 2018 Share Posted January 10, 2018 8 minutes ago, KSK said: Umm, I figure you all realised this anyway but in the interest of complete transparency, I should probably point out that the first sentence is fiction... I agree that the second sentence is a lovely quote though! Oh, I understand that his first sentence was fiction. Quote Link to comment Share on other sites More sharing options...
tater Posted January 10, 2018 Share Posted January 10, 2018 Quote Link to comment Share on other sites More sharing options...
Spaceception Posted January 10, 2018 Share Posted January 10, 2018 (edited) I was honestly thinking they did it when I saw the tweet. Edited January 10, 2018 by Spaceception Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted January 10, 2018 Share Posted January 10, 2018 (edited) Static fire pushed back till tomorrow, same time Interesting aside, I see the Delta IV launch out of Vandy has been pushed back to tomorrow, hmm... Maybe there’s a national oxygen shortage? Edited January 10, 2018 by CatastrophicFailure Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted January 10, 2018 Share Posted January 10, 2018 Confirmation of a 15 second static fire. Quote Link to comment Share on other sites More sharing options...
Spaceception Posted January 10, 2018 Share Posted January 10, 2018 10 minutes ago, sevenperforce said: Confirmation of a 15 second static fire. Wait what? I can't find anything about that. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted January 10, 2018 Share Posted January 10, 2018 6 minutes ago, Spaceception said: Wait what? I can't find anything about that. I second that “wait, what?!” Quote Link to comment Share on other sites More sharing options...
Mitchz95 Posted January 10, 2018 Share Posted January 10, 2018 Nothing new on Twitter. Quote Link to comment Share on other sites More sharing options...
Nightfury Posted January 10, 2018 Share Posted January 10, 2018 There it is, 12 seconds Quote Link to comment Share on other sites More sharing options...
Mitchz95 Posted January 10, 2018 Share Posted January 10, 2018 3 minutes ago, Nightfury said: There it is, 12 seconds "CONFIRMED" "to have moved to Thursday" "12 seconds" Quote Link to comment Share on other sites More sharing options...
Nightfury Posted January 10, 2018 Share Posted January 10, 2018 Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted January 10, 2018 Share Posted January 10, 2018 Yeah, but... did Saturn ever have a 12 second full-power static fire? (Obviously the shuttle did not) Quote Link to comment Share on other sites More sharing options...
Nightfury Posted January 10, 2018 Share Posted January 10, 2018 Just now, CatastrophicFailure said: Yeah, but... did Saturn ever have a 12 second full-power static fire? (Obviously the shuttle did not) not really a static fire, but they had much more power for the time of liftoff Quote Link to comment Share on other sites More sharing options...
tater Posted January 10, 2018 Share Posted January 10, 2018 Apollo started spooling up the F-1s at ~T- 8-9 ("ignition sequence start!" POed me in the Apollo 13 movie when they did the countdown wrong). So the blast trench can take something approaching 20 seconds, probably. Sitting on the pad and doing a long, static test would be much harder on the pad than a real launch, where the LV leaves the pad such that the blast attenuates with every meter it climbs. Quote Link to comment Share on other sites More sharing options...
Brotoro Posted January 10, 2018 Share Posted January 10, 2018 (edited) 1 hour ago, CatastrophicFailure said: Yeah, but... did Saturn ever have a 12 second full-power static fire? (Obviously the shuttle did not) They didn't do static tests of the Saturn V on the launch pad, but they did full-power tests of the Saturn V's S-IC first stage (five F-1 engines...7.5 million pounds of thrust) on the test stand. I see a video of a test firing that was over 40 seconds long. ...and I see a document that says they did a static test of S-IC number 2 for 126.3 seconds. Edited January 10, 2018 by Brotoro Quote Link to comment Share on other sites More sharing options...
KSK Posted January 10, 2018 Share Posted January 10, 2018 1 hour ago, tater said: Apollo started spooling up the F-1s at ~T- 8-9 ("ignition sequence start!" POed me in the Apollo 13 movie when they did the countdown wrong). So the blast trench can take something approaching 20 seconds, probably. Sitting on the pad and doing a long, static test would be much harder on the pad than a real launch, where the LV leaves the pad such that the blast attenuates with every meter it climbs. Not going to tell a lie - that 'ignition sequence starts' call from the commentator always gives me goosebumps. Quote Link to comment Share on other sites More sharing options...
tater Posted January 10, 2018 Share Posted January 10, 2018 ^^^^me, too. Quote Link to comment Share on other sites More sharing options...
softweir Posted January 11, 2018 Share Posted January 11, 2018 OK, a couple of political posts have not been. Hidden. You never saw them! It was just marsh balloons! And, yeah, let's avoid politics. Pretty please? Quote Link to comment Share on other sites More sharing options...
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