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Jared Mecham
@jaredmecham · 19. März 2019
@elonmusk Do you happen to know if AWD Model 3s will get a peak power increase? Thanks!
Elon Musk
@elonmusk · 20. März 2019
Coming soon
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Elon Musk
@elonmusk · 17. März 2019
Antwort an @rix
Yes, full duration
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Elon Musk
@elonmusk · 17. März 2019
Antwort an @alexwestergaard
White-hot parts reached orbital entry temp of around 1650 Kelvin
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Elon Musk
@elonmusk · 17. März 2019
Antwort an @SidewalkSciGuy
Falcon rocket booster is aluminum-lithium & carbon fiber, which have low max temperature allowables. Super Heavy booster is stainless steel. Since it only goes to around Mach 8 or 9, moreover at high altitude, it needs no heat shield, not even paint.
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Some1gee
@Some1gee · 17. März 2019
I thought you were going with transpiration cooling so you wouldn't have to replace them after each flight. Will this system be the backup for the transpiration cooling, something in addition to the transpiration cooling, or a replacement to it.
Elon Musk
@elonmusk · 17. März 2019
Transpiration cooling will be added wherever we see erosion of the shield. Starship needs to be ready to fly again immediately after landing. Zero refurbishment.
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K10✨
@Kristennetten · 17. März 2019
Fascinating. Why hexagonal shape?
Elon Musk
@elonmusk · 17. März 2019
No straight path for hot gas to accelerate through the gaps
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Elon Musk
@elonmusk · 17. März 2019
Testing Starship heatshield hex tiles
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Mathias Wehler
@Mathias_Wehler · 17. März 2019
Will you have an extra cooling system incase the transportation cooling system fails?
Elon Musk
@elonmusk · 17. März 2019
Hexagonal tiles on most of windward side, no shield needed on leeward side, transpiration cooling on hotspots
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Alex Tutt
@Sloppy93 · 17. März 2019
Is transportation cooling still how you plan to actively cool the windward side of Starship?
Elon Musk
@elonmusk · 17. März 2019
Only some of the hottest sections
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Anner J. Bonilla 🇵🇷🛩️🔋🔧
@annerajb · 17. März 2019
After hopper planning on going straight to superheavy full size? Or intermediate development vehicle is planned?
Elon Musk
@elonmusk · 17. März 2019
Full size
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Anner J. Bonilla 🇵🇷🛩️🔋🔧
@annerajb · 17. März 2019
Will the nosecone be used for the hop test?
Elon Musk
@elonmusk · 17. März 2019
We decided to skip building a new nosecone for Hopper. Don’t need it. What you see being built is the orbital Starship vehicle.
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Everyday Astronaut
@Erdayastronaut · 17. März 2019
Theoretically, can you throttle more with closed cycle since the lox / methane pumps are on separate shafts / systems and maintain the proper ratios?
Elon Musk
@elonmusk · 17. März 2019
You can deep throttle on single shaft system by choking flow of fuel or oxygen between pump & combustion chamber. Problem is more with the tiny rocket engine that powers the pump, called a gas generator. That has to throttle *way* deeper than the main chamber.
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Michael Baylor
@MichaelBaylor_ · 17. März 2019
Where will the first orbital flights of Starship occur from?
Elon Musk
@elonmusk · 17. März 2019
Working on regulatory approval for both Boca Chica, Texas, and Cape Kennedy, Florida. Will also be building Starship & Super Heavy simultaneously in both locations.
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KEAGAN
@KeaganGigaTexas · 17. März 2019
@elonmusk @Tesla @LikeTeslaKim @BenSullins @teslainventory I have a idea for a model x software update. To have the falcon wing doors close automatically when you reach a certain speed. For a safety feature and you can obviously turn it off if need be. Tell me what you think.
Elon Musk
@elonmusk · 17. März 2019
Agreed
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Everyday Astronaut
@Erdayastronaut · 17. März 2019
Is throttling raptors pretty difficult? I can’t imagine figuring out how to run two totally separate preburners / turbopumps in unison and maintain accurate and precise throttling. You guys are crazy for figuring that beast out!!
Elon Musk
@elonmusk · 17. März 2019
Raptor is *very* complex, even for a staged combustion engine. We’re simplifying as much as possible with each iteration. Throttling down to ~50% is hard, but manageable. Going to 25% would be extremely tough, but hopefully not needed.
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Elon Musk
@elonmusk · 17. März 2019
Antwort an @omarqazi
Started rolling it out a few days ago. Always starts slow, find rare corner case issues, fix them, continue rollout …
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Elon Musk
@elonmusk · 17. März 2019
Antwort an @flcnhvy
Hopefully. Always many issues integrating engine & stage. First hops will lift off, but only barely.
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Austin Barnard🚀
@austinbarnard45 · 16. März 2019
Do y’all think #SpaceX will attempt some sort of test, With only one raptor or wait for the other two to arrive. It’s honestly been boggling my mind.
Elon Musk
@elonmusk · 17. März 2019
First (really short) hops with one engine. Suborbital flights with three.
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Elon Musk
@elonmusk · 17. März 2019
Wow, this is crazy
Elon Musk
@elonmusk · 17. März 2019
Goes against interests of all Texans
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Electrek.co
@ElectrekCo · 16. März 2019
Texas is trying to block Tesla from even servicing its cars in direct sale battle with car dealers electrek.co/2019/03/16/tes… by @fredlambert
Elon Musk
@elonmusk · 17. März 2019
Wow, this is crazy
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