RealKerbal3x Posted October 5, 2020 Share Posted October 5, 2020 Florida is cursed. Quote Link to comment Share on other sites More sharing options...
Scotius Posted October 5, 2020 Share Posted October 5, 2020 Crazy weather is the price for having a launch site as far south as almost possible. And it's still storm season, so it could be worse Quote Link to comment Share on other sites More sharing options...
Treveli Posted October 5, 2020 Share Posted October 5, 2020 49 minutes ago, RealKerbal3x said: Florida is cursed. No we're not! (glances at weather report of possible cat 2 hitting NW Florida while people are still cleaning up after Sally came through) No we're not... Quote Link to comment Share on other sites More sharing options...
tater Posted October 5, 2020 Share Posted October 5, 2020 Quote Link to comment Share on other sites More sharing options...
Scotius Posted October 5, 2020 Share Posted October 5, 2020 Low visibility, they say. Make life easier for astronomers, they say. And here we are, with the perspective of tens of thousands of nearly invisible satellites above our heads - some of which will be spy birds. How many? And which ones? Wouldn't you love to know? Quote Link to comment Share on other sites More sharing options...
RealKerbal3x Posted October 6, 2020 Share Posted October 6, 2020 Russia is building an F9 competitor, but it seems to me like they're shooting at the wrong target... Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted October 6, 2020 Share Posted October 6, 2020 8 hours ago, Scotius said: tens of thousands of nearly invisible satellites above our heads - some of which will be spy birds Spylink Quote Link to comment Share on other sites More sharing options...
sh1pman Posted October 6, 2020 Share Posted October 6, 2020 2 hours ago, RealKerbal3x said: Russia is building an F9 competitor, but it seems to me like they're shooting at the wrong target... Not a competitor, lighter class rocket. 12t to LEO. Quote Link to comment Share on other sites More sharing options...
James Kerman Posted October 6, 2020 Share Posted October 6, 2020 Another Starlink 12 attempted launch in 15 minutes. Quote Link to comment Share on other sites More sharing options...
RealKerbal3x Posted October 6, 2020 Share Posted October 6, 2020 Pls no scrub... Quote Link to comment Share on other sites More sharing options...
Flavio hc16 Posted October 6, 2020 Share Posted October 6, 2020 finally lift off, finally!! Quote Link to comment Share on other sites More sharing options...
RCgothic Posted October 6, 2020 Share Posted October 6, 2020 Landing success! 61st landing. Quote Link to comment Share on other sites More sharing options...
Scotius Posted October 6, 2020 Share Posted October 6, 2020 Another flawless flight It's routine at this point, which is awesome. Quote Link to comment Share on other sites More sharing options...
RCgothic Posted October 6, 2020 Share Posted October 6, 2020 (edited) Edited October 6, 2020 by RCgothic Quote Link to comment Share on other sites More sharing options...
RyanRising Posted October 6, 2020 Share Posted October 6, 2020 That one was particularly pretty to watch. Quote Link to comment Share on other sites More sharing options...
RCgothic Posted October 6, 2020 Share Posted October 6, 2020 (edited) Pretty! Falcon 9 is so slender it really does look like an arrow. Edited October 6, 2020 by RCgothic Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted October 6, 2020 Share Posted October 6, 2020 4 minutes ago, Scotius said: Another flawless flight It's routine at this point, which is awesome. There's nothing to look at. Break it up. Quote Link to comment Share on other sites More sharing options...
RCgothic Posted October 6, 2020 Share Posted October 6, 2020 Quote Link to comment Share on other sites More sharing options...
RCgothic Posted October 6, 2020 Share Posted October 6, 2020 (edited) So far block 5 is doing ok on the refurbs. Probably won't see 24h turnaround. Still quite a way to go from 50 days to 7-14 though! Also that chart needs updating. Edited October 6, 2020 by RCgothic Quote Link to comment Share on other sites More sharing options...
RCgothic Posted October 6, 2020 Share Posted October 6, 2020 And we also have a fairing catch! Don't know what happened to the other half yet. Quote Link to comment Share on other sites More sharing options...
Entropian Posted October 6, 2020 Share Posted October 6, 2020 Looks like they finally installed TUFX... Quote Link to comment Share on other sites More sharing options...
zolotiyeruki Posted October 6, 2020 Share Posted October 6, 2020 Alright, I have a question about the appearance of the rocket exhaust, and could use some education: 1) At launch, what is the composition of all those billowing clouds? Is the rocket kicking up that much dust from around the launch pad? Or is it imperfectly-burned LF/Ox? Or is it a whole lotta condensed water vapor from the exhaust? A combination of the three? Something else? 2) At low altitudes, the exhaust is a bright yellow flame, and then around Max-Q it's more of a transparent orange, and then at MECO, it's almost invisible. Why is that? Is it because the exhaust expands more at higher altitude, so there's not such a concentration of light-emitting hot/burning gasses in the plume? Quote Link to comment Share on other sites More sharing options...
RCgothic Posted October 6, 2020 Share Posted October 6, 2020 11 minutes ago, zolotiyeruki said: Alright, I have a question about the appearance of the rocket exhaust, and could use some education: 1) At launch, what is the composition of all those billowing clouds? Is the rocket kicking up that much dust from around the launch pad? Or is it imperfectly-burned LF/Ox? Or is it a whole lotta condensed water vapor from the exhaust? A combination of the three? Something else? 2) At low altitudes, the exhaust is a bright yellow flame, and then around Max-Q it's more of a transparent orange, and then at MECO, it's almost invisible. Why is that? Is it because the exhaust expands more at higher altitude, so there's not such a concentration of light-emitting hot/burning gasses in the plume? 1) is mostly water vapour from the pad sound suppression system and possibly some dust being kicked up of the pad. 2) A more expanded exhaust is cooler so it isn't as bright. Quote Link to comment Share on other sites More sharing options...
magnemoe Posted October 6, 2020 Share Posted October 6, 2020 13 minutes ago, zolotiyeruki said: Alright, I have a question about the appearance of the rocket exhaust, and could use some education: 1) At launch, what is the composition of all those billowing clouds? Is the rocket kicking up that much dust from around the launch pad? Or is it imperfectly-burned LF/Ox? Or is it a whole lotta condensed water vapor from the exhaust? A combination of the three? Something else? 2) At low altitudes, the exhaust is a bright yellow flame, and then around Max-Q it's more of a transparent orange, and then at MECO, it's almost invisible. Why is that? Is it because the exhaust expands more at higher altitude, so there's not such a concentration of light-emitting hot/burning gasses in the plume? 1) At launch they spray lots of water onto the exhaust to reduce noise, large rockets are so load the vibrations can damage the rocket and stuff on the pad, secondary use is to cool the flame trench. See the huge water tower nearby who is used for this. 2) correct, guess you also have the air react to the flame from the rocket and get heated up, you also has a bit of not fully burned fuel who continue to burn in contact with oxygen. Quote Link to comment Share on other sites More sharing options...
kedrednael Posted October 6, 2020 Share Posted October 6, 2020 5 minutes ago, zolotiyeruki said: 1) At launch, what is the composition of all those billowing clouds? Is the rocket kicking up that much dust from around the launch pad? Or is it imperfectly-burned LF/Ox? Or is it a whole lotta condensed water vapor from the exhaust? A combination of the three? Something else? It's mainly a normal water cloud which forms because they spray a lot of water underneath the rocket during take off, this water decreases shockwaves and heat from the engines. There will be some dust as well, but I think the land landings gives an idea how big that cloud could get, I don't think you can see any dust because of the water cloud. 7 minutes ago, zolotiyeruki said: 2) At low altitudes, the exhaust is a bright yellow flame, and then around Max-Q it's more of a transparent orange, and then at MECO, it's almost invisible. Why is that? Is it because the exhaust expands more at higher altitude, so there's not such a concentration of light-emitting hot/burning gasses in the plume? At low altitudes the exhaust encounters a lot of oxygen from the air around the rocket and the exhaust is kept at atmospheric pressure by the air so the exhaust products can continue to burn, so it's bright. At higher altitude the exhaust encounters less oxygen and the exhaust quickly expands so it doesn't burn as much anymore. In space you only see the dark sooth that would burn at lower altitudes. Haha I love the three similar answers . One thing I want to add is the shape of the flame of the first stage, there are these 8 visible flames on the outsides of the plume. I think that's where the exhaust from different engines collides together and with the surrounding air so it becomes higher pressure and with more oxygen again. But I'm not sure. 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.