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  • Elon Musk interview at Boca Chica

    From Jeff Findley@21:1/5 to All on Wed Aug 4 06:54:47 2021
    Interview of Elon Musk by Everyday Astronaut at Boca Chica. https://youtu.be/t705r8ICkRw

    Lots of good info in this video. I don't normally watch Everyday
    Astronaut, but this video caught my eye. Enjoy.

    Jeff
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  • From JF Mezei@21:1/5 to Jeff Findley on Wed Aug 4 17:19:53 2021
    On 2021-08-04 06:54, Jeff Findley wrote:

    Interview of Elon Musk by Everyday Astronaut at Boca Chica. https://youtu.be/t705r8ICkRw


    Many thanks. A rare opportunity to see Elon Musk speak without PR stunts
    and provide real information.

    So lots of weight shavimg still needed. Wonder if grid fins will go
    titanium? After he said that the fins wouldn't fold dow to save
    weight, I was expecting their edges to be sharp so they would be
    aerodynamic in vertical position on the way up.

    So the landing on Moon is still in flux with Musk expressing preference
    for using main engines if possible.


    BTW, the "catch me if you can" arms for landing of booster against tower
    cradle apepar really smal. Not much margin for error.


    But a huge difference in philosophy between NASA that designs a
    caddillac and then shaves off extras when needed, while Musk starts with
    a basic Lada and then adds stuff only where necessary.

    Looking forward to the subsequent parts of that interview.

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  • From JF Mezei@21:1/5 to Jeff Findley on Sat Aug 7 13:36:53 2021
    On 2021-08-04 06:54, Jeff Findley wrote:

    Interview of Elon Musk by Everyday Astronaut at Boca Chica. https://youtu.be/t705r8ICkRw


    part 2 has been posted:
    https://www.youtube.com/watch?v=SA8ZBJWo73E

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  • From JF Mezei@21:1/5 to All on Sat Aug 7 15:57:38 2021
    Interesting point by Elon:

    Tiles are ceramic, the mounting is metal, attached to steel structure
    all of which expand/cntact differently as the stack goes from room
    tempoerature down to cryo and then very hot during flight and very very
    hot during re-entry.

    .
    The steel and attach will go from room tempoerature down to cryo, and
    then get very hot during re-entry, so a lot of contraction and expansion
    of metal. And then you have very hot tiles and not so hot metal below.


    Falcon 9s Block 5 has evolved enough that SpaceX keeps the early ones
    for "terminal" missions where it isn't to be reused after because too
    much of a pain to reuse the early ones. So this shows that while
    development of Merlins was to have stopped it didn't.


    Stage 0 (the launch facility) is the hard part and Musk doesn't want "iterative" testing on it because rebuilding it takes time. So it may be
    a while before they attenpt a landing on it.


    Super Heavy isn't landing on its grid fins, it is landing on dedicated
    small arms proruding from fuselage that will contact the cradle.


    Missing from interview : question on whether welding as completed its
    iterative progress and they are now confident tanks win't burst anyme or whether further improvements are expected.

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  • From JF Mezei@21:1/5 to All on Wed Aug 11 16:11:21 2021
    part 3 of interview has been posted.

    https://youtu.be/9Zlnbs-NBUI

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  • From JF Mezei@21:1/5 to Jeff Findley on Wed Aug 11 16:37:10 2021
    On 2021-08-11 16:18, Jeff Findley wrote:
    In article <K9WQI.16591$NQ1.9266@fx48.iad>,
    jfmezei.spamnot@vaxination.ca says...

    part 3 of interview has been posted.

    https://youtu.be/9Zlnbs-NBUI

    I plan on watching this tonight. The first two parts were very
    interesting.


    The part 3 is much shorter. Musk fans will love it, but Musk speaks of interplaneraty species more than the launch complex. I get the feeling
    that either his attention span had run out of time, or that is is less
    focused on that part of the programme so had much less to say.

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  • From JF Mezei@21:1/5 to Jeff Findley on Wed Aug 11 16:23:15 2021
    On 2021-08-11 16:18, Jeff Findley wrote:

    I plan on watching this tonight. The first two parts were very
    interesting.


    Check out the size of the green/yellow/green crane from the point of
    view once they climbed up to the orbital launch support (the night
    before the launch ring was lifted on it).

    --- SoupGate-Win32 v1.05
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  • From Jeff Findley@21:1/5 to All on Wed Aug 11 16:18:54 2021
    In article <K9WQI.16591$NQ1.9266@fx48.iad>,
    jfmezei.spamnot@vaxination.ca says...

    part 3 of interview has been posted.

    https://youtu.be/9Zlnbs-NBUI

    I plan on watching this tonight. The first two parts were very
    interesting.

    Jeff
    --
    All opinions posted by me on Usenet News are mine, and mine alone.
    These posts do not reflect the opinions of my family, friends,
    employer, or any organization that I am a member of.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)