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Elon Musk
@elonmusk · 28 сент. 2019 г.
Rage, rage against the dying of the light
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Elon Musk
@elonmusk · 28 сент. 2019 г.
Ответ на @tesla_truth
We’re going to use the pedestrian pink noise speaker to talk to people & create customized horn sounds. “I beg your pardon, but would you be so kind as to allow me to proceed?” Said in the voice of Mr. Darcy.
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Elon Musk
@elonmusk · 28 сент. 2019 г.
Makes sense
Elon Musk
@elonmusk · 28 сент. 2019 г.
Special light pattern (but not hazards, as they’re too shrill) seems right
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Elon Musk
@elonmusk · 28 сент. 2019 г.
Ответ на @tesla_truth
Makes sense
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Elon Musk
@elonmusk · 28 сент. 2019 г.
Ответ на @tesla_truth
Precisely
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Elon Musk
@elonmusk · 27 сент. 2019 г.
Starship will allow us to inhabit other worlds
Elon Musk
@elonmusk · 27 сент. 2019 г.
To make life as we know it multiplanetary
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Elon Musk
@elonmusk · 27 сент. 2019 г.
Starship will allow us to inhabit other worlds
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Elon Musk
@elonmusk · 27 сент. 2019 г.
Starship halves being joined
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Elon Musk
@elonmusk · 27 сент. 2019 г.
Summon is improving rapidly
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Elon Musk
@elonmusk · 27 сент. 2019 г.
Ответ на @flcnhvy
Just SX500 so far, but we use many superalloys developed by others, eg Inco 718+. If anyone has 718++, that would be helpful haha. Massive engineering work in the casting, printing & machining of Raptor — far more than in design of the engine itself!
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Everyday Astronaut
@Erdayastronaut · 27 сент. 2019 г.
Besides turning turbines into soup, is it really some of these joints and stuff that are more prone to failure at such high pressures?
Elon Musk
@elonmusk · 27 сент. 2019 г.
There’s so much power going through this engine that it’s close to the limit of the known physics of materials in many places
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Connor Carter
@Carter__99 · 27 сент. 2019 г.
Also due to the mvac engines needing to be longer due to a further expanded nozzle and the engines still needing not to protrude for docking I imagine they’d be mounted higher, closer to the tank base?
Elon Musk
@elonmusk · 27 сент. 2019 г.
Yes
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Everyday Astronaut
@Erdayastronaut · 27 сент. 2019 г.
Sorry, my brain is breaking at the moment 🤯 Peak pressure is basically the pumps... the pumps go through the regen chambers next and then there’s some enthalpy drop to spin the turbines... and then by the time it gets to the chamber it’s “only” 250?
Elon Musk
@elonmusk · 27 сент. 2019 г.
Well, hopefully closer to 300 bar over time. However, that the chamber/nozzle jacket has so many joints & dissimilar metals at such high pressure & temperature is what I find remarkable about it.
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Elon Musk
@elonmusk · 27 сент. 2019 г.
Ответ на @flcnhvy
No, we’ve been focusing on production (now on SN12). Only need 250 bar or even a bit less for Starship/Super Heavy. Anything above 250 is nice to have & we’ll get around to it, but not needed for flight.
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Nikhil Chaudhary
@NCBirbhan · 27 сент. 2019 г.
Whoa!!! 12k psi😲.
Btw what's time for Starships Presentation Elon? It's going to be 28 in 2 hrs here!!
Elon Musk
@elonmusk · 27 сент. 2019 г.
Probably around 6 or 7pm
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Everyday Astronaut
@Erdayastronaut · 27 сент. 2019 г.
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.
Elon Musk
@elonmusk · 27 сент. 2019 г.
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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Elon Musk
@elonmusk · 27 сент. 2019 г.
Ответ на @GaryTheBot_
Figure of speech
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Elon Musk
@elonmusk · 27 сент. 2019 г.
Meanwhile, back in reality
TESLARATI@Teslarati· 27 сент. 2019 г.Fremont Police Dept. issues statement clarifying misconceptions about Tesla Police Cruiser
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Dana Loesch
@DLoesch · 26 сент. 2019 г.
Fremont Police Tesla Near-Dead Battery Forces Officer Off Pursuit
sanfrancisco.cbslocal.com/2019/09/25/fre…
Elon Musk
@elonmusk · 27 сент. 2019 г.
Media report was false
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Everyday Astronaut
@Erdayastronaut · 26 сент. 2019 г.
Without regen cooling, it would need film cooling, which would require a gas generator, which this engine doesn’t have. They have to be regen cooled due to being full flow
Elon Musk
@elonmusk · 27 сент. 2019 г.
Raptor uses milled copper channels with an inconel jacket all the way down
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