tater Posted June 18, 2021 Share Posted June 18, 2021 18 minutes ago, JoeSchmuckatelli said: So - is the Merlin and stage now 'junk' ? I think it was supposed to do a disposal burn to lower perigee. Quote Link to comment Share on other sites More sharing options...
tater Posted June 18, 2021 Share Posted June 18, 2021 Quote Link to comment Share on other sites More sharing options...
JoeSchmuckatelli Posted June 18, 2021 Share Posted June 18, 2021 32 minutes ago, tater said: I think it was supposed to do a disposal burn to lower perigee. Now that is professional spacefaring! Quote Link to comment Share on other sites More sharing options...
JB182 Posted June 18, 2021 Share Posted June 18, 2021 when will starship do its orbital launch? Quote Link to comment Share on other sites More sharing options...
Codraroll Posted June 18, 2021 Share Posted June 18, 2021 6 minutes ago, JB182 said: when will starship do its orbital launch? If we had known for certain, this thread would mostly consist of posts counting down the hours. I seem to recall Musk saying they aimed for July, but his aim in these regards is famously a bit shaky. Quote Link to comment Share on other sites More sharing options...
JB182 Posted June 18, 2021 Share Posted June 18, 2021 Just now, Codraroll said: If we had known for certain, this thread would mostly consist of posts counting down the hours. I seem to recall Musk saying they aimed for July, but his aim in these regards is famously a bit shaky. k Quote Link to comment Share on other sites More sharing options...
RCgothic Posted June 18, 2021 Share Posted June 18, 2021 (edited) There was a photo of a shipping status chart for engines for the orbital launch test spotted at Hawthorne recently. It seemed to be counting down to approx end of 1st week of July. Assuming then 1 week to go through acceptance testing at McGregor and 2 weeks for installation and static fires at Starbase, we're then looking at end of July or start of August at the very earliest. There's still a lot to do on Booster 2, SN20, and the orbital launch complex (tower, launch table and tank farm) though. My personal guess would be late some time in late August or early September. Edited June 18, 2021 by RCgothic Quote Link to comment Share on other sites More sharing options...
magnemoe Posted June 18, 2021 Share Posted June 18, 2021 9 hours ago, StrandedonEarth said: Emphasis on “might”. He said they “might” fly SN15 again too. But given that 16 is unflown and built, they may as well try to glean more data from it somehow They want to save SN15 as an memorial, the hypersonic flight might well not include an landing as in they burn it dry aiming for maximum attitude and velocity. The most interesting part here might be how control surfaces works at high velocity. Quote Link to comment Share on other sites More sharing options...
Deddly Posted June 18, 2021 Share Posted June 18, 2021 Do we have any figures for approximate Delta-v for Starship alone? If they're doing a hypersonic test anyway, I'd love to see it do single stage to orbit with no payload, just because it would be cool to have something actually do SSTO. Quote Link to comment Share on other sites More sharing options...
RealKerbal3x Posted June 18, 2021 Share Posted June 18, 2021 9 minutes ago, Deddly said: Do we have any figures for approximate Delta-v for Starship alone? If they're doing a hypersonic test anyway, I'd love to see it do single stage to orbit with no payload, just because it would be cool to have something actually do SSTO. A Starship SSTO would have to be completely stripped down to work, no flaps, heatshield or landing propellant. Hypersonic doesn't necessarily mean orbit anyway. Hypersonic is Mach 5+, whereas orbit is more like Mach 25. Quote Link to comment Share on other sites More sharing options...
tater Posted June 18, 2021 Share Posted June 18, 2021 SN16 is plumbed for 3 Raptors. It ain't going very far by itself. Quote Link to comment Share on other sites More sharing options...
JoeSchmuckatelli Posted June 18, 2021 Share Posted June 18, 2021 If you ever wondered how SX was going to make any monies by flinging internet into space and bathing rural areas in low grade radiation: https://www.nbcnews.com/tech/tech-news/new-federal-broadband-maps-show-stark-differences-access-affordability-rcna1220 The Red parts are where broadband is needed Quote Link to comment Share on other sites More sharing options...
YNM Posted June 18, 2021 Share Posted June 18, 2021 (edited) 46 minutes ago, JoeSchmuckatelli said: If you ever wondered how SX was going to make any monies by flinging internet into space and bathing rural areas in low grade radiation: There's still a lot of part of the world that have similar situation as well. The concept works, the (immediate) effect on the masses works, but we'll see if there's anything interesting coming in the future as well. Edited June 18, 2021 by YNM Quote Link to comment Share on other sites More sharing options...
tater Posted June 18, 2021 Share Posted June 18, 2021 Quote Link to comment Share on other sites More sharing options...
Flying dutchman Posted June 18, 2021 Share Posted June 18, 2021 Max Delta v for Starship sn16 while stille able to take off is about 4700 i think, correct me if i'm wrong. Quote Link to comment Share on other sites More sharing options...
pmborg Posted June 18, 2021 Share Posted June 18, 2021 9 hours ago, Deddly said: Do we have any figures for approximate Delta-v for Starship alone? If they're doing a hypersonic test anyway, I'd love to see it do single stage to orbit with no payload, just because it would be cool to have something actually do SSTO. Hello! Did you checked already this video done with "SpaceX RO Falcons" Quote Link to comment Share on other sites More sharing options...
pmborg Posted June 18, 2021 Share Posted June 18, 2021 3 hours ago, Flying dutchman said: Max Delta v for Starship sn16 while stille able to take off is about 4700 i think, correct me if i'm wrong. With the current engine version with full tanks is about 9541m/s using only the VAC engines. The target is about 11,610m/s for Mars mission. Quote Link to comment Share on other sites More sharing options...
Flying dutchman Posted June 18, 2021 Share Posted June 18, 2021 Just now, pmborg said: With the current engine version with full tanks is about 9541m/s using only the VAC engines. The target is about 11,610m/s for Mars mission. Sn16 only has three of them. That limits the amount of fuel they can take off with. Quote Link to comment Share on other sites More sharing options...
pmborg Posted June 18, 2021 Share Posted June 18, 2021 (edited) 6 minutes ago, Flying dutchman said: Sn16 only has three of them. That limits the amount of fuel they can take off with. yes the maximum is about 4300m/s with current version of for the ATM engines in a Low or a High flight. Edited June 18, 2021 by pmborg Quote Link to comment Share on other sites More sharing options...
tater Posted June 19, 2021 Share Posted June 19, 2021 Quote Link to comment Share on other sites More sharing options...
JoeSchmuckatelli Posted June 19, 2021 Share Posted June 19, 2021 The drawing of BN2 shows a boatload of Raptors sketched for future hanging How many would they actually need for suborbital testing? Is 3 enough? 6? Quote Link to comment Share on other sites More sharing options...
tater Posted June 19, 2021 Share Posted June 19, 2021 4 minutes ago, JoeSchmuckatelli said: The drawing of BN2 shows a boatload of Raptors sketched for future hanging How many would they actually need for suborbital testing? Is 3 enough? 6? 29. Quote Link to comment Share on other sites More sharing options...
SpaceFace545 Posted June 19, 2021 Share Posted June 19, 2021 How is superheavy gonna deal with the heat from ~30 engines all inches away from each other. One of Ares Vs biggest downfalls was the heatload from the rs-68s nested together. Quote Link to comment Share on other sites More sharing options...
Spaceman.Spiff Posted June 19, 2021 Share Posted June 19, 2021 (edited) 5 minutes ago, SpaceFace545 said: How is superheavy gonna deal with the heat from ~30 engines all inches away from each other. One of Ares Vs biggest downfalls was the heatload from the rs-68s nested together. They deal with it the same way Ares would. Regenerative cooling. Which raptors already use. Edited June 19, 2021 by Spaceman.Spiff Quote Link to comment Share on other sites More sharing options...
tomf Posted June 19, 2021 Share Posted June 19, 2021 3 minutes ago, SpaceFace545 said: How is superheavy gonna deal with the heat from ~30 engines all inches away from each other. One of Ares Vs biggest downfalls was the heatload from the rs-68s nested together. I assume the regenerative cooling is enough to take the heat away from the bells where the rs-68s ablative cooling wasn't enough. Raptors were designed to be used in clusters after all. Quote Link to comment Share on other sites More sharing options...
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