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Scott Manley
@DJSnM · 21 февр. 2019 г.
I remember hearing about problem with Pinter injectors naturally creating a region in combustion chamber which ablated much faster.
Elon Musk
@elonmusk · 21 февр. 2019 г.
Pinter injector tends to have hot & cold streaks. Hot streaks burn a rut at the throat that accelerates erosion.
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Elon Musk
@elonmusk · 21 февр. 2019 г.
Ответ на @benoitdenayer
Essentially, yes. Great engineering talent, but should focus on reusable rockets for purpose of a permanent human base on the moon and self-sustaining city on Mars.
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Not Sure
@DrRichardPitre · 21 февр. 2019 г.
Elon: Many small investors want to be a part of this historic event. Find a way that doesn't compromise your control. We'll gladly share the risk. Thanks.
Elon Musk
@elonmusk · 21 февр. 2019 г.
We are constrained by the accredited investor rule, but will think about how this could be done
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Everyday Astronaut
@Erdayastronaut · 21 февр. 2019 г.
Wasn't Merlin 1A ablatively cooled? I believe Tom Mueller's got one hanging out in his house 😂 The Merlin of 15 years ago is NOTHING like the Merlin today. You guys pulled every single drop of power out of that thing! 🙌
Elon Musk
@elonmusk · 21 февр. 2019 г.
Yeah, that was a bit embarrassing ☺️High engine chamber pressure and ablative don’t get along. Ok for low pressure, expendable upper stage.
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sasor098
@sasor098 · 21 февр. 2019 г.
Then just upgrade it as they go, the merlin wasn't that good to start out and now it fights with the best of them
Elon Musk
@elonmusk · 21 февр. 2019 г.
That’s true 😀 Merlin 1A was terrible. 1C was ok, 1D good, but block 5 Merlin (should probably be called 1E) is something special. Took about 15 years to get there.
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Everyday Astronaut
@Erdayastronaut · 21 февр. 2019 г.
Not really, no. For instance, ULA had a $100 million per year in “readiness” for defense stuff. SpaceX never got that
Elon Musk
@elonmusk · 21 февр. 2019 г.
Actually, they received (and still receive) almost a billion dollars a year for “launch capability”. Even if they do zero launches, US govt still gives them that.
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Elon Musk
@elonmusk · 21 февр. 2019 г.
Ответ на @Geopilot
Don’t know
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Elon Musk
@elonmusk · 21 февр. 2019 г.
I have been chief engineer/designer at SpaceX from day 1. Had I been better, our first 3 launches might have succeeded, but I learned from those mistakes. arstechnica.com/science/2018/0…
Elon Musk
@elonmusk · 21 февр. 2019 г.
SpaceX commercial 🚀 launch market share went from 0% in 2010 to 65% in 2018. Despite massive subsidies to Boeing/Lockeed, they have never won a fair competition against SpaceX for several years.
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Dreams of Mars 🕊❤️🚀🌕
@MemesOfMars · 21 февр. 2019 г.
You've come a long way since the Falcon 1!
Elon Musk
@elonmusk · 21 февр. 2019 г.
Exactly. That’s the critical point for Starship/BFR: more payload than the biggest rocket ever made, but for less money per launch than the smallest (orbital) rocket. Without something that lowers orbital flight cost by 100X, humanity will never be a multiplanet species.
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RaceFan22
@fan_of_racing · 21 февр. 2019 г.
To be fair, most engines that NASA uses are much better than the Merlin engine. Merlins are based off of engine designs from the '50s.
Raptor on the other hand is one of the most advanced rocket engines ever developed.
Elon Musk
@elonmusk · 21 февр. 2019 г.
SpaceX Merlin architecture is simpler than staged combustion (eg SSME or RD), but it has world record for thrust/weight & thrust/cost engine. Raptor has better Isp, but I’m worried it may fall short on those two critical metrics.
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Elon Musk
@elonmusk · 21 февр. 2019 г.
Ответ на @wonderofscience
So true 🤡 John Clarke 👌
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Elon Musk
@elonmusk · 21 февр. 2019 г.
Ответ на @macodiseas
Not true. Limiting factor in any staged combustion rocket engine, liquid/gas or gas/gas, is pressure & temperature in oxygen preburner
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Mønterey
@moenterey · 21 февр. 2019 г.
And on your Satoshi BTC address you hold the rest.
Elon Musk
@elonmusk · 21 февр. 2019 г.
Whoever owns the early BTC deserves a Nobel prize in delayed gratification
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CoinDesk
@CoinDesk · 20 февр. 2019 г.
Elon Musk, CEO of Tesla, has officially gone public with his belief cryptocurrency offers an improved alternative to conventional money. ow.ly/9nRZ30nLmYa
Elon Musk
@elonmusk · 21 февр. 2019 г.
That said, I still only own 0.25 BTC, which a friend sent me several years ago. Don’t have any crypto holdings.
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Katya Pavlushchenko
@katlinegrey · 21 февр. 2019 г.
#Rogozin doesn't believe that @elonmusk will create an engine better than #RD180. According to Rogozin, Musk "is not a technical specialist in this matter" and "does not understand what this is about": interfax.ru/russia/651354
Elon Musk
@elonmusk · 21 февр. 2019 г.
I have been chief engineer/designer at SpaceX from day 1. Had I been better, our first 3 launches might have succeeded, but I learned from those mistakes.
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Elon Musk
@elonmusk · 20 февр. 2019 г.
Tesla made 0 cars in 2011, but will make around 500k in 2019
Elon Musk
@elonmusk · 20 февр. 2019 г.
Meant to say annualized production rate at end of 2019 probably around 500k, ie 10k cars/week. Deliveries for year still estimated to be about 400k.
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Kristen Henry
@kristendlt · 20 февр. 2019 г.
Do they load themselves @elonmusk
Elon Musk@elonmusk· 20 февр. 2019 г.4000 Tesla cars loading in SF for Europe
Elon Musk
@elonmusk · 20 февр. 2019 г.
Won’t be long before they do
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Elon Musk
@elonmusk · 20 февр. 2019 г.
4000 Tesla cars loading in SF for Europe
Elon Musk
@elonmusk · 20 февр. 2019 г.
Tesla made 0 cars in 2011, but will make around 500k in 2019
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Elon Musk
@elonmusk · 20 февр. 2019 г.
4000 Tesla cars loading in SF for Europe
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The Onion
@TheOnion · 19 февр. 2019 г.
Narrow Line Of Dirt Not Being Swept Into Dustpan Without A Fight trib.al/WmGyJlU
Elon Musk
@elonmusk · 19 февр. 2019 г.
The gritty truth …
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