tater Posted December 5, 2018 Share Posted December 5, 2018 10 minutes ago, sh1pman said: ...I think I heard of a certain starship with no emergency escape system planned, doesn’t seem to be the best idea now, does it?.. Yeah, I think any crew version should have a (frickin huge) crew capsule on top with LES until they demonstrate several thousand flawless flights. Quote Link to comment Share on other sites More sharing options...
Mad Rocket Scientist Posted December 5, 2018 Share Posted December 5, 2018 Edited together video: https://www.youtube.com/watch?v=SMIc4tZPBaA Quote Link to comment Share on other sites More sharing options...
tater Posted December 5, 2018 Share Posted December 5, 2018 (edited) Edited December 5, 2018 by tater Quote Link to comment Share on other sites More sharing options...
Shpaget Posted December 5, 2018 Share Posted December 5, 2018 Oh come on! They've made rocket launches (almost) boring to watch, and now, the first one I miss watching live, this happens. Anyway, I like how the core still extends landing legs, as if they're going to help with water landing. Quote Link to comment Share on other sites More sharing options...
tater Posted December 5, 2018 Share Posted December 5, 2018 Quote Link to comment Share on other sites More sharing options...
Mad Rocket Scientist Posted December 5, 2018 Share Posted December 5, 2018 (edited) Go Quest is on the move: https://www.marinetraffic.com/en/ais/details/ships/shipid:450521/mmsi:367564890/imo:1155515/vessel:GO_QUEST http://www.cruisin.me/cruise-port-tracker/united-states/port-canaveral-florida.php https://www.marinetraffic.com/en/ais/home/shipid:450521/zoom:10 Edited December 5, 2018 by Mad Rocket Scientist Quote Link to comment Share on other sites More sharing options...
sh1pman Posted December 5, 2018 Share Posted December 5, 2018 21 minutes ago, Mad Rocket Scientist said: Go Quest is on the move: https://www.marinetraffic.com/en/ais/details/ships/shipid:450521/mmsi:367564890/imo:1155515/vessel:GO_QUEST http://www.cruisin.me/cruise-port-tracker/united-states/port-canaveral-florida.php https://www.marinetraffic.com/en/ais/home/shipid:450521/zoom:10 Plot twist: Bezos arrives first on his giant Stena freighter and steals the stage! Quote Link to comment Share on other sites More sharing options...
KSK Posted December 5, 2018 Share Posted December 5, 2018 (edited) 34 minutes ago, Shpaget said: Oh come on! They've made rocket launches (almost) boring to watch, and now, the first one I miss watching live, this happens. Anyway, I like how the core still extends landing legs, as if they're going to help with water landing. Joking aside, I think they did. Logically, extending the legs should increase the booster's moment of inertia, thus helping slow its spin* - and from watching the video again, I think they did just that. Okay, the legs weren't ever going to stop the booster falling over, but I'm thinking that taking out that last bit of spin before landing probably helped it to stay intact when it did. * Edit - apologies to @Mad Rocket Scientist who already explained this bit. Edited December 5, 2018 by KSK Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted December 5, 2018 Share Posted December 5, 2018 2 hours ago, CatastrophicFailure said: They mentioned in the feed, that was just ice coming off, nothing that hasn't happened before. Wow, does that ever sound familiar.... Quote Link to comment Share on other sites More sharing options...
Brotoro Posted December 5, 2018 Share Posted December 5, 2018 (edited) The booster performed its safing procedure after landing. Nice. Edited December 5, 2018 by Brotoro Quote Link to comment Share on other sites More sharing options...
XB-70A Posted December 5, 2018 Share Posted December 5, 2018 Was there, and it was pretty stressful in-live. Almost no one could see it with their eyes due to the distance, but as I was looking at my monitor I could not believe what was happening! Jump to 3:02, the swaying movement is terrifying! Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted December 5, 2018 Share Posted December 5, 2018 Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted December 5, 2018 Share Posted December 5, 2018 6 minutes ago, Ultimate Steve said: Gee, I wonder... Does that mean they’ve hooked it up for tow then? Quote Link to comment Share on other sites More sharing options...
tater Posted December 5, 2018 Share Posted December 5, 2018 Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted December 5, 2018 Share Posted December 5, 2018 I wonder what that burst of flame was. Quote Link to comment Share on other sites More sharing options...
tater Posted December 5, 2018 Share Posted December 5, 2018 5 minutes ago, Ultimate Steve said: I wonder what that burst of flame was. Ditto. Unsure. Looked like a vent, honestly. Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted December 5, 2018 Share Posted December 5, 2018 29 minutes ago, Ultimate Steve said: I wonder what that burst of flame was. Laughter. It was one last LOL from the rocket. "I bet Elon is going to call this a 'water landing'," it thought to itself. Quote Link to comment Share on other sites More sharing options...
Brotoro Posted December 5, 2018 Share Posted December 5, 2018 (edited) 33 minutes ago, Ultimate Steve said: I wonder what that burst of flame was. The Falcon often sits and burns around the bottom after landing. I assume that was the same gasses...but they bubbled up out of the water all at once and ignited. Huh...no... it definitely appears to have squirted out. Edited December 5, 2018 by Brotoro Quote Link to comment Share on other sites More sharing options...
Mad Rocket Scientist Posted December 6, 2018 Share Posted December 6, 2018 Direct video link for both of the twitter videos: https://video.twimg.com/ext_tw_video/1070446808147476480/pu/vid/852x480/2DvqFedryK4Nz_9l.mp4?tag=6 https://video.twimg.com/ext_tw_video/1070399664875130881/pu/vid/852x480/rQavAaLm-ROooBfG.mp4?tag=6 Quote Link to comment Share on other sites More sharing options...
Mad Rocket Scientist Posted December 6, 2018 Share Posted December 6, 2018 There's also talk on NSF of possible roll correction with a singe engine. It seems like if the engine is not directly in axis with the rotation (for example, if the rocket is not exactly spinning around its long axis) you can use a continuously changing gimbal angle to provide some "roll" control. Think more like anti-swirling than direct roll correction. Of course doing all that, while estimating the steering and gravity losses from that in addition to maintaining normal stability with major constant forces that are dependent on changing velocity and air pressure, would be a piece of control software that makes PID controllers look as advanced as using feathers on the ends of arrows. Quote Link to comment Share on other sites More sharing options...
cubinator Posted December 6, 2018 Share Posted December 6, 2018 18 minutes ago, Mad Rocket Scientist said: There's also talk on NSF of possible roll correction with a singe engine. It seems like if the engine is not directly in axis with the rotation (for example, if the rocket is not exactly spinning around its long axis) you can use a continuously changing gimbal angle to provide some "roll" control. Think more like anti-swirling than direct roll correction. Of course doing all that, while estimating the steering and gravity losses from that in addition to maintaining normal stability with major constant forces that are dependent on changing velocity and air pressure, would be a piece of control software that makes PID controllers look as advanced as using feathers on the ends of arrows. Quote Link to comment Share on other sites More sharing options...
ThatGuyWithALongUsername Posted December 6, 2018 Share Posted December 6, 2018 You know, I was only kidding when I thought to myself that the landing was gonna fail or something because I was going to miss the launch! I didn't mean it! Don't drink and land, kids. Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted December 6, 2018 Share Posted December 6, 2018 Well, it’s about time they made those flights more interesting, since it was starting to get ho-hum. These B5’s must be pretty beefed up since they now appear to be able to handle the “ body-slam” of tipping over. I wonder if it could survive a droneship topple without exploding. Not flyable, of course, but no kaboom... They should have enough time to dry it out to be a candidate for the MaxQ abort test Now here’s a question: are the engines’ control systems designed to redline the remaining engines if one fails? Quote Link to comment Share on other sites More sharing options...
ThatGuyWithALongUsername Posted December 6, 2018 Share Posted December 6, 2018 P.S. @NovaSilisko was really fast on this one: Quote Link to comment Share on other sites More sharing options...
StrandedonEarth Posted December 6, 2018 Share Posted December 6, 2018 3 hours ago, XB-70A said: Was there, and it was pretty stressful in-live. Almost no one could see it with their eyes due to the distance, but as I was looking at my monitor I could not believe what was happening! Jump to 3:02, the swaying movement is terrifying! Wow, thanks for that great video! I’m sure at the end you were thinking “Where’s the kaboom? After that descent there should be a (an earth-shattering) kaboom! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.