RedKraken Posted May 14, 2017 Share Posted May 14, 2017 2 minutes ago, Green Baron said: aehm ... the ITS doesn't exist yet ... as far as i read it is unclear whether there is a full sized raptor ... no dry mass, no isp, no dV. Just saying :-) Cool. My words are careless at times. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted May 15, 2017 Share Posted May 15, 2017 I came across this photo on SpaceFlightNow... I thought they weren't recovering anything on this flight, but those square...ish, green off-green taupe light colored bits at the top of the fairing, cold-gas RCS ports, maybe? How bout that blue gas cylinder at the bottom? Quote Link to comment Share on other sites More sharing options...
magnemoe Posted May 15, 2017 Share Posted May 15, 2017 Think its part of the fairing ejection system, and yes I guess it uses cold gas both for unlocking and to propel away from rocket. They plan to recover fairings but that would require adding an small parachute and a transmitter who make it easier to locate. Might also add some flotation device even if it it floats. Control will be simple fairing eject works as today except that it activates the beacon and release the parachute at set attitude. So simple it would not be hard to make water proof, they would have to waterproof the release and eject system too. They are likely to develop an lighter fairing if they can recover it as cost become less important. Quote Link to comment Share on other sites More sharing options...
Green Baron Posted May 15, 2017 Share Posted May 15, 2017 (edited) I never thought about how to get rid of the shell. It seems to be a complex process. I can't see any gas release in the video, though they say a pneumatic system pushes the fairings open. Maybe that means that pressure (out of something the blue cylinders ?) drives a series of bolts but nothing is released ? http://www.spacex.com/news/2013/05/27/spacex-fairing-separation-test http://www.spacex.com/news/2013/04/12/fairing Pressure in the Proton fairings is equalized as the rocket climbs, so it is not the overpressure that pushes the eggshells apart. Proton seems to use some directed pyro to release the locks and "pushers" to open them. Acceleration then leaves them behind, i think (?). http://www.ilslaunch.com/node/3307 Apparently Orion uses a similar thing, explosive bolts and springs to get rid of the overweight: https://www.nasa.gov/press/2013/november/nasas-orion-sees-flawless-fairing-separation-in-second-test/ But that was just a quick search ... Edited May 15, 2017 by Green Baron Quote Link to comment Share on other sites More sharing options...
TheEpicSquared Posted May 15, 2017 Share Posted May 15, 2017 (edited) Huh, no technical webcast for this launch either. I guess it's just simpler to have one. I liked the technical one, though. I could concentrate on launch proceedings without listening to the commentators rambling on about things I've heard a million times before... Edited May 15, 2017 by TheEpicSquared Quote Link to comment Share on other sites More sharing options...
Spaceception Posted May 15, 2017 Share Posted May 15, 2017 9 hours. Well, time to camp here then. *Starts setting up tent* Also, I hope there aren't too many more expendable launches. Quote Link to comment Share on other sites More sharing options...
_Augustus_ Posted May 15, 2017 Share Posted May 15, 2017 1 hour ago, Spaceception said: Also, I hope there aren't too many more expendable launches. There won't be a need for any once FH is flying. Quote Link to comment Share on other sites More sharing options...
KSK Posted May 15, 2017 Share Posted May 15, 2017 Actually I'm kinda hoping that we'll see at least some Heavies launching as disposables. Because that implies a requirement for some beefy payloads on orbit, which implies some interesting mission variety. Quote Link to comment Share on other sites More sharing options...
Spaceception Posted May 15, 2017 Share Posted May 15, 2017 14 minutes ago, KSK said: Actually I'm kinda hoping that we'll see at least some Heavies launching as disposables. Because that implies a requirement for some beefy payloads on orbit, which implies some interesting mission variety. Hopefully not too many of those though But yes, that would be awesome; to the Moon, Mars, and beyond! Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted May 15, 2017 Share Posted May 15, 2017 Dumb news coverage: Quote After a streak of successful launches, SpaceX is looking damn spiffy. While the best part of watching a SpaceX launch is arguably the last leg of the trip, when the Falcon 9 first stage attempts to land softly back on Earth, tonight, SpaceX will be doing something a little more complicated than its typical launch routine—and as a result, it won’t be trying to land at all. At around 7:21 p.m. EDT this evening, the aerospace company will launch a Falcon 9 rocket from Pad 39A at NASA Kennedy Space Center in Florida. It’ll be carrying a 13,400-pound communications satellite from a London-based corporation called Inmarsat-5 F4 into a Geostationary Transfer Orbit (GTO) some 22,300 miles above Earth’s equator. To a ground observer, a satellite placed in GTO appears stationary, which is useful because it allows any ground-based antennae to remain pointed at a single spot in the sky. GTO is a lot higher and tricker to reach than Low Earth Orbit (LEO), where most of SpaceX’s missions to date have taken place. Uh, no. Most of SpaceX's missions have gone to GTO, not LEO. And a satellite in GTO does not appear stationary; a satellite in GEO appears stationary. The reason the launch is expendable is because they are sending a particularly heavy bird to GTO. But what do you expect? Quote Link to comment Share on other sites More sharing options...
Scotius Posted May 15, 2017 Share Posted May 15, 2017 Welp, at least they used proper terms. Although i wouldn't call this mission more complicated than the mission including landing Quote Link to comment Share on other sites More sharing options...
tater Posted May 15, 2017 Share Posted May 15, 2017 This is why you can pretty much ignore reporting on almost anything at all. We all know this stuff, so the space reporting looks like it is written by an idiot. When my wife reads medical stories, she says the same thing. A friend is an attorney, he says a lot of legal reporting is pretty clueless (though there are so many lawyers some work in the media). If reporters could do something useful, they'd not be reporters. (my apologies to any reporters here harmed by this post) Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted May 15, 2017 Share Posted May 15, 2017 (edited) 17 minutes ago, Scotius said: Welp, at least they used proper terms. Although i wouldn't call this mission more complicated than the mission including landing Well they got GTO and GEO confused. GTO is a Hohmann Transfer to GEO. Edited May 15, 2017 by sevenperforce Quote Link to comment Share on other sites More sharing options...
_Augustus_ Posted May 15, 2017 Share Posted May 15, 2017 25 minutes ago, tater said: If reporters could do something useful, they'd not be reporters. Exactly. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted May 15, 2017 Share Posted May 15, 2017 Sigh. Can't see this one, gotta go drive now. That breaks my streak. Good luck, SpaceX. I trust this thread will keep me updated. Quote Link to comment Share on other sites More sharing options...
_Augustus_ Posted May 15, 2017 Share Posted May 15, 2017 3 minutes ago, CatastrophicFailure said: Sigh. Can't see this one, gotta go drive now. That breaks my streak. Good luck, SpaceX. I trust this thread will keep me updated. Same here. Quote Link to comment Share on other sites More sharing options...
Scotius Posted May 15, 2017 Share Posted May 15, 2017 As usual - comment section on YT channel is full of eye-watering stupidity, ignorance and immaturity. Why rocket launches always bring kooks out of the woods? Quote Link to comment Share on other sites More sharing options...
Spaceception Posted May 15, 2017 Share Posted May 15, 2017 1 minute ago, Scotius said: As usual - comment section on YT channel is full of eye-watering stupidity, ignorance and immaturity. Why rocket launches always bring kooks out of the woods? There's no chat, what're you talkin' about? Quote Link to comment Share on other sites More sharing options...
StupidAndy Posted May 15, 2017 Share Posted May 15, 2017 (edited) 2 minutes ago, Scotius said: As usual - comment section on YT channel is full of eye-watering stupidity, ignorance and immaturity. Why rocket launches always bring kooks out of the woods? I just see "chat is disabled for this livestream" am I lucky for that? oh, and I'm home alone, so I get to watch the launch on a big TV THANK YOU APPLE!!! Edited May 15, 2017 by StupidAndy BIG TV!! Quote Link to comment Share on other sites More sharing options...
Scotius Posted May 15, 2017 Share Posted May 15, 2017 I'm watching it there: Quote Link to comment Share on other sites More sharing options...
StupidAndy Posted May 15, 2017 Share Posted May 15, 2017 oh, not official SpaceX stream, here's the real one: has pretty good waiting music, better then elevators... Quote Link to comment Share on other sites More sharing options...
Spaceception Posted May 15, 2017 Share Posted May 15, 2017 (edited) Saw some comments zip by nah I'm going to stick to the official one. Edited May 15, 2017 by Spaceception Quote Link to comment Share on other sites More sharing options...
Scotius Posted May 15, 2017 Share Posted May 15, 2017 I'm switching to official too. At least weather is beautiful - i'm ready for awesomeness that is Falcon in flight Quote Link to comment Share on other sites More sharing options...
StupidAndy Posted May 15, 2017 Share Posted May 15, 2017 (edited) 7 minutes ago, Spaceception said: Saw some comments zip by nah I'm going to stick to the official one. its better because we cant share our opinions!! so the idiots cant too!! EDIT: and its started! and it isn't the last guy! Edited May 15, 2017 by StupidAndy Quote Link to comment Share on other sites More sharing options...
Scotius Posted May 15, 2017 Share Posted May 15, 2017 Stream is starting! Go SpaceX!!! Quote Link to comment Share on other sites More sharing options...
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