Posts
Michael Baylor
@MichaelBaylor_ · Feb 22, 2019
I assume there is also a lot of risk in terms of the condition of the capsule after DM-1, since you will be reflying the same capsule for the abort?
Elon Musk
@elonmusk · Feb 22, 2019
Yes, lot of risk
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Thomas Burghardt
@TGMetsFan98 · Feb 22, 2019
Elon Standard Time ;)
Elon Musk
@elonmusk · Feb 22, 2019
Guys, I have feelings … 😜
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Elon Musk
@elonmusk · Feb 22, 2019
Replying to @flcnhvy
Focusing on Starship instead
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Rоgiег Мaаs ツ
@rogiermaas · Feb 22, 2019
What happens to the second stage after deployment? Does it shut down and keep coasting alongside the cargo? Get out of the way of the cargo? Does it deorbit and burn up? @elonmusk @SpaceX
Elon Musk
@elonmusk · Feb 22, 2019
Deorbits & burns up over the Pacific
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Everyday Astronaut
@Erdayastronaut · Feb 22, 2019
Will the second stage be a dummy stage? Any special preparations to help make the upper stage survive the high pressure load at Max Q?
Elon Musk
@elonmusk · Feb 22, 2019
Upper stage is flight, except mass sim in place of Merlin. It will get fragged for sure by aero loads & Dragon abort thrusters.
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SpaceXUpdates
@SpaceXUpdates · Feb 22, 2019
How many boosters are you planning on having in the Block 5 fleet?
Elon Musk
@elonmusk · Feb 22, 2019
Including Heavy, which is 3 cores, around 20 or so
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Michael Baylor
@MichaelBaylor_ · Feb 22, 2019
In a follow up tweet, @elonmusk says that this booster's fourth flight will be the inflight abort in April. However, the official NASA Commercial Crew schedule says that the abort test will occur in June. 🤔
blogs.nasa.gov/commercialcrew…
Elon Musk@elonmusk· Feb 22, 2019Highest reentry heating to date. Burning metal sparks from base heat shield visible in landing video. Fourth relight scheduled for April.
Elon Musk
@elonmusk · Feb 22, 2019
Depends on when Crew Dragon comes back. That’s scheduled for launch next Saturday, but lot of new hardware, so time error bars are big.
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Elon Musk
@elonmusk · Feb 22, 2019
Replying to @CanzyD
High probability of this particular rocket getting destroyed by Dragon supersonic abort test. Otherwise, at least 20 or 30 missions for Falcon 9. Starship will take over before the F9 fleet reaches end of life.
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SpaceXUpdates
@SpaceXUpdates · Feb 22, 2019
Fourth flight of B1048 is scheduled for April. CRS-17? or another mission?
Elon Musk@elonmusk· Feb 22, 2019Highest reentry heating to date. Burning metal sparks from base heat shield visible in landing video. Fourth relight scheduled for April.
Elon Musk
@elonmusk · Feb 22, 2019
Crew Dragon high altitude abort test
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Sivaraj
@sivarajkumar237 · Feb 22, 2019
You mean "Reflight"?
Elon Musk
@elonmusk · Feb 22, 2019
Yes 😀
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Elon Musk
@elonmusk · Feb 22, 2019
Highest reentry heating to date. Burning metal sparks from base heat shield visible in landing video. Fourth relight scheduled for April.
SpaceX@SpaceX· Feb 22, 2019Falcon 9 first stage has landed on the Of Course I Still Love You droneship, completing this booster’s third launch and landing.
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Abby Garrett
@abbygarrettart · Feb 21, 2019
Elon, I’d love to hear what you thought about Kestrel, the engine most people probably don’t know about.
Elon Musk
@elonmusk · Feb 21, 2019
Always liked Kestrel. It was the Robin Hood of engines.
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Scott Manley
@DJSnM · Feb 21, 2019
A more realistic stepping stone is Antimatter Catalyzed Fission/Fusion engines, only needs tiny amounts of antimatter to drive 'regular' nuclear reactions. But before we get to that there's lots of other more accessible technologies.
Elon Musk
@elonmusk · Feb 21, 2019
Advanced, reusable rockets are all we need to become a multiplanet civilization. Once we have a city on Mars, interplanetary travel will create a forcing function for vast improvements in spaceflight.
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Gavin Browne
@gavbrowne · Feb 21, 2019
Are there component differences between SN1 and SN2 that would prevent damage?
Elon Musk
@elonmusk · Feb 21, 2019
SN2 has changes that should help
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Elon Musk
@elonmusk · Feb 21, 2019
Yes
Elon Musk
@elonmusk · Feb 21, 2019
To the first part. I doubt we’d create a Dyson ring or sphere.
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Balint Toth
@balcsi32 · Feb 21, 2019
can't we use the energy of the Sun to create anti-matter, and use that for interstellar travel? Maybe using a Dyson sphere/ring? @elonmusk
Elon Musk
@elonmusk · Feb 21, 2019
Yes
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Reagan Beck
@bluemoondance74 · Feb 21, 2019
Have the most recent tests in McGregor been Merlins or Raptors? The last 4+ have seemed very similar... w/ one exception last wk (Fri. night)
Elon Musk
@elonmusk · Feb 21, 2019
Merlins. The max chamber pressure run damaged Raptor SN 1 (as expected). A lot of the parts are fine for reuse, but next tests will be with SN 2, which is almost done.
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Dan Aloni
@DanAloni · Feb 21, 2019
Got any plans for anti-matter production for energy storage on Earth?
Elon Musk
@elonmusk · Feb 21, 2019
Anti-matter production would require vast amounts of energy. No need though. We have a super reliable, massive, free fusion reactor called the sun.
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KellyNyanbinary
@KellyNyanbinary · Feb 21, 2019
Nuclear engines require a shield, which means a complete redesign of the whole propulsion bus and probably everything else.
Elon Musk
@elonmusk · Feb 21, 2019
Exactly. Super money move is anti-matter drive, especially if you solve capturing antiprotons in deep space.
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Elon Musk
@elonmusk · Feb 21, 2019
Pinter injector tends to have hot & cold streaks. Hot streaks burn a rut at the throat that accelerates erosion.
Elon Musk
@elonmusk · Feb 21, 2019
You can see the streaks on the vacuum Merlin nozzle in flight videos
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