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Elon Musk Sep 26
Three Raptors on a Starship
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Everyday Astronaut Sep 26
Replying to @elonmusk
How can the nozzles be so thin but still have regen cooling?!? Man, weโ€™ve come a long ways since this ๐Ÿ‘‡ (F-1 Nozzle regen tubing)
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CorSPACE Sep 26
I don't think it has full Regen cooling all the way down the nozzle. I think it's more like Merlin. But you would not think that for a multi staged engine
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Everyday Astronaut Sep 26
Replying to @Cor_SPACE @elonmusk
Without regen cooling, it would need film cooling, which would require a gas generator, which this engine doesnโ€™t have. They have to be regen cooled due to being full flow
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Elon Musk Sep 26
Raptor uses milled copper channels with an inconel jacket all the way down
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Everyday Astronaut Sep 26
Replying to @elonmusk @Cor_SPACE
What is the thickness of the nozzle walls?! AMAZING fuel can go down, turn around and come back in such a small space. Tolerances have to be crazy on something like that.
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Elon Musk Sep 27
What blows my mind is that peak pressure in regen chamber & nozzle is *far* above combustion pressure at over 800 bar or ~12,000 psi
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Nikhil Chaudhary Sep 27
Whoa!!! 12k psi๐Ÿ˜ฒ. Btw what's time for Starships Presentation Elon? It's going to be 28 in 2 hrs here!!
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Renata Konkoly ๐Ÿฆ‰ Sep 27
= 11pm/12am UTC ๐Ÿ™‚
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Thomas Maufer Sep 27
Sadly too late in CEST. I'll watch the replay on YouTube after I wake up. I'll dream of massive rockets, though.
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Nikhil Chaudhary Sep 27
So near 3-4 am here. So gotta wake up early ๐Ÿ˜
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Lal Sep 28
I am not going to sleep๐Ÿ˜‚
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Gailaira Sep 27
Scientists, Engineers, Mechanics, and Aerospace Enthusiasts be like:
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Renata Konkoly ๐Ÿฆ‰ Sep 27
Will SpaceX attend IAC this year?
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AChA Sep 27
Yes, with Paul Wooster Of course, the Starship in there will be already updated
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ElonX Sep 27
Central?
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Anshid NP Sep 27
So 3 am sunday for indians
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