Posts
Ishan
@ishanspatil · May 23, 2019
Expected payload to LEO?
Elon Musk
@elonmusk · May 23, 2019
Aiming for 150 tons useful load in fully reusable configuration, but should be at least 100 tons, allowing for mass growth
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SPEXcast
@SPEXcast · May 23, 2019
With Raptor development progressing smoothly, how isvernior/RCS thruster development going for Starship? Still methane-based? Nitrogen, hydrazine, or something new?
Elon Musk
@elonmusk · May 23, 2019
N2 for vacuum. Aero surfaces & high gimbal angle main engines for atmosphere.
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SPEXcast
@SPEXcast · May 23, 2019
What does raptor Vac performance look like? Isp? Thrust? Throttle range?
Elon Musk
@elonmusk · May 23, 2019
Hoping for 380 sec Isp, but at least 370. Otherwise similar to sea level version.
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Eric Ralph
@13ericralph31 · May 23, 2019
So RaptorVac is back on the table for nearer term launches?
Elon Musk
@elonmusk · May 23, 2019
Aspirationally
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Evelyn Janeidy
@JaneidyEve · May 23, 2019
Why tho? 🐉
Elon Musk
@elonmusk · May 23, 2019
3 sea level optimized Raptors, 3 vacuum optimized Raptors (big nozzle)
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Eric Ralph
@13ericralph31 · May 23, 2019
.... 7? ;)
Elon Musk
@elonmusk · May 23, 2019
After the GoT finale, we dropped it to 6
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SPEXcast
@SPEXcast · May 23, 2019
When will multi engine test vehicles begin construction? Will a Super Heavy engine section be test fired this year?
Elon Musk
@elonmusk · May 23, 2019
Mk1 & Mk2 ships at Boca & Cape will fly with at least 3 engines, maybe all 6
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Reagan Beck
@bluemoondance74 · May 23, 2019
When do you expect production on Raptors to begin ramping up in Hawthorne? What’s the status at this point?
Elon Musk
@elonmusk · May 23, 2019
About to complete SN5, ramping to an engine every 3 days this summer
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Elon Musk
@elonmusk · May 23, 2019
Boring Company starts digging Vegas tunnel in 2 months. Aiming to finish by end of year.
The Boring Company@boringcompany· Mar 6, 2019Thank you to @LVCVA @LVCVAImpact – hope we can do great things for Las Vegas together!
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Elon Musk
@elonmusk · May 22, 2019
But, essentially, the spinning things
Elon Musk
@elonmusk · May 23, 2019
The turbine also spins though. Partially combusted gas drives the turbine wheel, which is attached to a shaft that turns the inducer & impellers.
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Elon Musk
@elonmusk · May 22, 2019
Replying to @Orion_Sword
But, essentially, the spinning things
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Some1gee
@Some1gee · May 22, 2019
Can someone explain what an impeller/inducer is? Are they the spinny things?
Elon Musk
@elonmusk · May 22, 2019
Yes
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Everyday Astronaut
@Erdayastronaut · May 21, 2019
Here's the full flow staged combustion cycle! Note: ALL of the fuel goes through one pre-burner/turbine and ALL of the oxidizer goes through the other pre-burner/turbine so it arrives in the combustion chamber super spicy! Full video drops by this weekend! 🤞@elonmusk @SpaceX
Elon Musk
@elonmusk · May 22, 2019
Turbopump propellant flow path to achieve high chamber pressure is quite tricky. Requires an inducer & 2 impellers with ~100,000 shaft horsepower.
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Elon Musk
@elonmusk · May 22, 2019
😉
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Royal Academy
@royalacademy · May 22, 2019
So, weird day – @elonmusk poached our social media editor (absolute unit of a story, see @guardian, @FT, @Telegraph today). Anyway, would you like the job? Apply here: roy.ac/social-editor
Elon Musk
@elonmusk · May 22, 2019
Did it for the memes
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Erik in DÆrik
@teslainventory · May 22, 2019
@elonmusk I had a Powerwall issue recently. Any way to get more integration between powerwalls & the cars/wall connectors? That way when power goes out I can have a setting to not charge cars and drain the Powerwalls? Would be super appreciated. ☀️🚗
youtu.be/nByzZpGqspc
Elon Musk
@elonmusk · May 22, 2019
Coming soon
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Elon Musk
@elonmusk · May 21, 2019
Replying to @arctechinc
Yeah, been thinking about it for a long time. Electric supersonic VTOL. Hard problem.
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Bot
@BPSYT1 · May 21, 2019
So hop test soon? 👀👀🤞🏼🤞🏼
Elon Musk
@elonmusk · May 21, 2019
Hopefully in about 10 days
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Everyday Astronaut
@Erdayastronaut · May 21, 2019
Here's the full flow staged combustion cycle! Note: ALL of the fuel goes through one pre-burner/turbine and ALL of the oxidizer goes through the other pre-burner/turbine so it arrives in the combustion chamber super spicy! Full video drops by this weekend! 🤞@elonmusk @SpaceX
Elon Musk
@elonmusk · May 21, 2019
Physics favors full flow
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CleanTechnica
@cleantechnica · May 21, 2019
Lilium Reveals Long-Awaited New Air Taxi & Celebrates Maiden Flight In The Same Swoop cleantechnica.com/2019/05/21/lil…
Elon Musk
@elonmusk · May 21, 2019
Good design imo
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