SpaceX

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• SpaceX Presskits - Google Drive
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Youtubes

• SES-10, ice
• YouTube - Live streams - List - Newest

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Previsions

-
  date:
    declaration: 2017
    prevision:
      - 2020
      - 2021
  title: Manned dragon to ISS
  description: Will you ride Dragon to ISS?
  link: https://www.reddit.com/r/spacex/comments/6o947y/elon_musks_keynote_speech_at_the_2017_issrd/
-
  date:
    declaration: 2017
  title: Tunnels good for Mars
  description: Ice mining will be important, also underground habitats for radiation shielding. Entire cities underground if you wanted to.
  link: https://www.reddit.com/r/spacex/comments/6o947y/elon_musks_keynote_speech_at_the_2017_issrd/

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From r/SpaceX

r/SpaceX Elon Musk AMA answers discussion thread : spacex

from r/SpaceX – Sun Oct 23 21:34:43 2016 UTC

r/SpaceX

from r/SpaceX – Wed Oct 5 13:23:04 2016 UTC

• I founded SpaceX with entirely my own money, out of $180Million from the sale of PayPal to Ebay, of which $100Million went into SpaceX, $70Million went to ... Tesla, $10Million to SolarCity, so everything actually. But uh and like I said I expected the most likely outcome was failure.
  PayPal > Ebay $180M
  • SpaceX $100M
  • Tesla $70M
  • SolarCity $10M

    r/SpaceX Ask Anything Thread [September 2016, n24]

from r/SpaceX – Wed Aug 31 06:19:38 2016 UTC

As per the looks of it, my guess is that much of the load will transfer through the interlinked octawebs, and the reinforcement of the center core happened due to two factors:

• After crossing the sound barrier the FH will accelerate with 1.5-2.5x as much thrust as an equivalent Falcon 9: which puts much more vertical load on the center core, especially as the side cores empty out: the center core is still almost fully fueled at this point and all that thrust coming from 27 engines has to transfer up the stack.
• The center core will also reach much higher MECO velocities as a regular Falcon 9 core (3-4 km/s instead of 2-3 km/s), which is more efficiently shed via aerobraking - but higher entry speeds mean much more violent atmospheric entry - which requires stronger structure.

In any case transferring hundreds of tons-force of momentum via lateral loads is very inefficient, so I strongly suspect that 90-95% of the side thrust will transfer via the interlined octaweb structure.

"SES-10 Launching to Orbit on SpaceX's Flight-Proven Falcon 9 Rocket.

from r/SpaceX – Tue Aug 30 07:55:22 2016 UTC

• Avionics may outlast engines, which may outlast propellant lines, which may outlast grid fins.
• That's one of the great side-effects of reusability. It allows you truly examine the output of your product; which can inform your inputs going forward. It completes the circle!

  I am SpaceX employee number 14, aerospace engineer, and VP of Human Resources. Ask me anything! : spacex

from r/SpaceX – Tue Aug 2 16:05:23 2016 UTC

• We try not to limit our thinking except by the limits imposed by physics. If someone says something can’t be done, whether it’s a business decision or an engineering one, they better have Einstein and Newton backing them up.
• That’s how we’ll make the fastest progress. We try to avoid analysis paralysis in all our work. We build, test, break things and iterate with a sense of urgency.
• We call these new reliability engineering departments Design Reliability, Build Reliability and Flight Reliability. Our own Chief Engineer Hans Koenigsmann leads the Flight Reliability team.
• Interns who receive high marks and have outstanding performance are typically offered a repeat internship or a full time position.
• it was there I met some fantastic engineers (one referred me to my first job at SpaceX!), professors, and more.

  This is probably going to take a lot longer than we thought.

from r/SpaceX – Wed Aug 17 07:05:51 2016 UTC

• Falcon Heavy does not exist in a vacuum. It has a big competitor: the Falcon 9
• Falcon Heavy was a "factor of 2.5x" payload and complexity upgrade to the Falcon 9, and thus the quickly advancing Falcon 9 kept bumping into the cost and complexity structure of the Falcon Heavy.
• BFR+MCT is a factor 10-20x upgrade to the Falcon 9, in terms of reusable payload - and that with full upper stage reusability which changes the economics fundamentally. It's also a factor of 1.5-2.0x downgrade in terms of basic complexity, compared to the Falcon Heavy.

The day Elon Musk unveils MCT/BFR, will be 8 years minus 1 day from when Falcon 1 first achieved orbit, the first liquid-fueled, commercially funded orbital launch vehicle ever to do so. That should convince even the most diehard pessimists that SpaceX has indeed accomplished the impossible in the past. They could be able to do it again.

Elon Musk's keynote speech – 2017 – ISSR&D Conference

from r/SpaceX – Wed Jul 19 15:15:51 2017 UTC

I try to spend as much on R&D as I can. I spend 80% of my time doing engineering

I'd like to see coalitions of countries in friendly competition (for Mars resources)

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