toodroot t1_iybzt4v wrote
Reply to comment by KiwieeiwiK in China set to launch Shenzhou-15 spacecraft to its space station on Tuesday by Soupjoe5
Who knows, maybe they'll add a bit more propulsion to the payload so that the booster doesn't quite enter orbit and comes down in a controlled fashion?
That's the standard Russian and US solution to "big stage coming down uncontrolled". Which you just saw being used with SLS, and was used by Energia and Shuttle.
KiwieeiwiK t1_iyc0k52 wrote
The issue isn't in thrust or fuel tolerances, the rockets used on the core stage are only able to be fired once since they use pyrotechnic charges to get the turbines to start spinning on the pad. Replacing them would mean completely redesigning the entire rocket, you can't just take off one rocket engine and add a different one like in Kerbal Space Program, it takes years of rigorous testing and certifying. And it would require many more launches of core stages we have no guarantee would come down from orbit anyway.
toodroot t1_iyc0wim wrote
This is false, as I've pointed out repeatedly in the past.
Look at how SLS does it.
Look at how Energia did it.
Look at how Shuttle did it.
The core stage does not relight for any of these.
All of them did it on the first try, too.
KiwieeiwiK t1_iyc2jky wrote
Fucking hell it's you again, back with this Energia shit.
I really want to know which youtuber you watched that talked about the Energia! It's very clear you haven't got any new information since you last posted. They haven't uploaded anything recently?
toodroot t1_iyc2vcs wrote
I think the main point was that I was right last time. BTW, I don't watch any youtube, I stopped watching TV when I was 19.
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