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Thread: SpaceX

  1. #5041
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    Quote Originally Posted by Trebuchet View Post
    I'll have to look again, but I'm pretty sure I saw eight on the periphery and one in the center. The angled mounting blocks make it a bit awkward to count.
    I also noticed that the assembly has been machined, not just welded together.

    ETA: Here is a picture.
    Ok, that is eight in the middle, not nine? ring and one for the center. This must fit into another one with 29.

  2. #5042
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    Quote Originally Posted by bknight View Post
    Ok, that is eight in the middle, not nine? ring and one for the center. This must fit into another one with 29.
    Yes, that's how I figure it. F9 is also eight in a ring and one in the center.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  3. #5043
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    Quote Originally Posted by bknight View Post
    You are correct about the costs and while their may be an economy of scale. But for launching ~100 per week whether into LEO or BEO (Moon or Mars)literally means finding ~5200 people who want to go and can afford whatever the price may be. It is unlikely to be $100. Price will definitely be a determining factor in demand as with any product or service. I don't know their costs, but a one use second stage doesn't seem to be a large part, but certainly greater than zero, of the current price structure for a F9 launch. All of us are guessing about all this because that involves knowing the future, although it does seem a profitable venture if they can generate the demand.
    Individual self-paying passengers are not the only use for Starship, or even the primary use. Even the Mars ships will mostly be cargo, and I wouldn't be surprised if the passenger traffic to/from LEO turns out to be dominated by people working shifts on a research station.

  4. #5044
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    Elon Musk ✓ @elonmusk
    Pretty close. Inner ring is closer to center 3, as all 12 gimbal together. Boost back burn efficiency is greatly improved in this config.

    https://twitter.com/elonmusk/status/1399221133711446018

  5. #5045
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    Clearly not the current test article configuration! But you can't expect a mere CEO to know what's actually going on.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  6. #5046
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    Another vertical Raptor test stand

    https://twitter.com/bluemoondance74/...11247160741891

  7. #5047
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    Quote Originally Posted by Trebuchet View Post
    Clearly not the current test article configuration! But you can't expect a mere CEO to know what's actually going on.
    I think the mere CEO is working a few iterations beyond what's currently in the steel.
    With sufficient thrust, water towers fly just fine.

  8. #5048
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    As noted in the Axiom Space thread, Crew Dragon will be flying 4 Axiom commercial missions.

  9. #5049
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    Quote Originally Posted by Trebuchet View Post
    Clearly not the current test article configuration! But you can't expect a mere CEO to know what's actually going on.
    Quote Originally Posted by Nicolas View Post
    I think the mere CEO is working a few iterations beyond what's currently in the steel.
    Unlike many CEO's Musk is a hands on engineer strong in applied physics. You bet your bippy he's elbow deep in the next several iterations.

  10. #5050
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    Quote Originally Posted by docmordrid View Post
    Unlike many CEO's Musk is a hands on engineer strong in applied physics. You bet your bippy he's elbow deep in the next several iterations.
    (Emphasis added) I suddenly had a memory of Laugh-In, which I haven’t seen since I was a kid. I also don’t think I’ve heard “You bet your [sweet] bippy” since then either. Ah nostalgia.

    "The problem with quotes on the Internet is that it is hard to verify their authenticity." — Abraham Lincoln

    I say there is an invisible elf in my backyard. How do you prove that I am wrong?

    The Leif Ericson Cruiser

  11. #5051
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    Quote Originally Posted by Van Rijn View Post
    (Emphasis added) I suddenly had a memory of Laugh-In, which I haven’t seen since I was a kid. I also don’t think I’ve heard “You bet your [sweet] bippy” since then either. Ah nostalgia.
    OT That’s the second reference I’ve seen to Laugh-In in 12 hours. The other was pointing out how much things changed in the 1960s by comparing popular TV shows at the decade’s start and finish.
    I may have many faults, but being wrong ain't one of them. - Jimmy Hoffa

  12. #5052
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    Nice launch and first stage landing although a bit off center. I wonder how much deviation the first stage of the Starship will have on its reentry "catch"?

  13. #5053
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    Quote Originally Posted by bknight View Post
    Nice launch and first stage landing although a bit off center. I wonder how much deviation the first stage of the Starship will have on its reentry "catch"?
    Big difference: Super Heavy can hover, Falcon 9 cannot. While hovering, Super Heavy will have & use translation thrusters to "center" it. This anti-missile warhead test shows how a hover with translation thrusters works for precision positioning,

    https://youtu.be/KBMU6l6GsdM

    SN-20 Raptor Vacuum mounts spotted...

    https://youtu.be/17jpQTTrh6g
    Last edited by docmordrid; 2021-Jun-06 at 04:34 AM.

  14. #5054
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    And a midnight launch carrying the Sirius SXM 8 satellite went off without a hitch, that's 8 launches in 44 days.

  15. #5055
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    Quote Originally Posted by Garrison View Post
    And a midnight launch carrying the Sirius SXM 8 satellite went off without a hitch, that's 8 launches in 44 days.
    And they stick the landing, even with a 7 tonne payload to GTO.

    They're on a serious roll.

  16. #5056
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    Quote Originally Posted by docmordrid View Post
    Big difference: Super Heavy can hover, Falcon 9 cannot. While hovering, Super Heavy will have & use translation thrusters to "center" it. <snip>
    Yes I have seen the hovering and the thrusters from their video feed and it all works until fuel exhaustion. But I understand your thoughts.

  17. #5057
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    https://boards.greenhouse.io/spacex/...rc=e6cb41e22us

    STARSHIP MEDICAL ENGINEER

    SpaceX is expanding the world’s human spaceflight capability and revolutionizing human spaceflight operations. The SpaceX medical team is responsible for developing the concept of operations, medical system, research and monitoring protocols, and technology necessary to ensure the safety and health of the crewmembers that fly on SpaceX missions. As a Starship medical engineer, you will be responsible for developing the medical system for Starship. You will work collaboratively with an interdisciplinary team of engineers, specialists, and directly with customers to develop medical capabilities and execute missions. SpaceX is looking for excellent, team-oriented doctor scientists who have clinical experience, a passion for space, and a demonstrated interest in human spaceflight.

  18. #5058
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    And they just keep on comin'... this cadence is nuts

    GPS III SV05 for the DoD

    Date: June 17, 2021
    Time: 1800 - 2100 Eastern (2200 - 0100 UT)
    Booster: B1062.2 (GPS III SV04)
    Pad: SLC-40
    Booster recovery: ASDS
    Fairing recovery: yes

    GPS III SV05 processing March 2021 (Lockheed Martin).jpg

  19. #5059
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    Raptor test on McGregor's elevated tripod stand

    https://youtu.be/1xJ24i1GH0k

  20. #5060
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    SpaceX is re-opening their pad at Vandenberg Space Force Base SLC-4E in California after refits for rapid high latitude & polar StarLink launches.

    While these are now possible from Florida due to their autonomous flight safety systems, they require a dogleg turn around populated islands which uses extra fuel, which could be applied to launching more mass (secondary satellites, etc.) or a better trajectory.

    ASDS Of Course I Still Love You leaves Port Canaveral for a trip to Long Beach CA for those launches, and new ASDS A Shortfall of Gravitas enters service in Florida.

    OCISLY's deck extensions can stay on this trip because a wider Panama Canal passage opened in 2016.

    https://twitter.com/nextspaceflight/...22526803935232

  21. #5061
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    Totally trivial sidenote, but I was a small part of making that wider (and deeper) Panama Canal happening. So, I guess you could say that there would be no SpaceX as we know it today if it weren't for me.
    With sufficient thrust, water towers fly just fine.

  22. #5062
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    Liebherr post about their super-cranes at Starbase...

    https://www.liebherr.com/en/int/late...chica-usa.html

    06/10/2021

    Liebherr cranes hoist SpaceX rocket components in Boca Chica, USA

    - Three Liebherr crawler cranes in action at Starbase in Boca Chica, Texas

    - Buckner Heavy Lift Cranes assembles rocket using large cranes from Ehingen

    - SpaceX lifts off from new launch site in the USA

    >
    “These are impressive images for us to see, with our crawler cranes at the heart of private American space travel. And the statics and calculations for this job were also a real highlight for us, it is not every day that something like this arrives on our screens”, says Jens Könneker, Product Manager Lattice Boom Cranes at Liebherr. “We have had a close working relationship based on trust with Buckner for many years. The fact that we are the supplier of choice for a project like this is a sign of great appreciation and trust – and it was something very special for us”, adds Florian Ritzler, Sales Manager Lattice Boom Cranes for the USA.
    >

  23. #5063
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    Buckner owns the yellow one. Frankencrane belongs to Fagioli and Tankzilla to Roll-Lift, though all are Liebherr. Perhaps Buckner acts as US agent for the two European companies?
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  24. #5064
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    5th integration tower segment is on the move...

    https://twitter.com/considercosmos/s...01817887711234
    Last edited by docmordrid; 2021-Jun-11 at 10:57 PM.

  25. #5065
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    Segment 4 lifted & attached, segment 5 on-site waiting. Another segment at the production site.

    https://youtu.be/-kBIgxVHgcA

  26. #5066
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    The lifting was being livestreamed yesterday, with a lot of people watching. I simply don't have that much patience! And that's quite a crane they've got there!
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  27. #5067
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    Quote Originally Posted by docmordrid View Post
    Segment 4 lifted & attached, segment 5 on-site waiting. Another segment at the production site.

    https://youtu.be/-kBIgxVHgcA
    I wasn't able to see the extension on the crane, but it might appear that one more tower segment is all that the current crane configuration will allow.

  28. #5068
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    Quote Originally Posted by bknight View Post
    I wasn't able to see the extension on the crane, but it might appear that one more tower segment is all that the current crane configuration will allow.
    The tower is only half-height. Very likely another crane extension is needed.

  29. #5069
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    I'm thinking that final segment waiting to be lifted will the last to be installed in one piece. Then they'll put in a twirly crane to lift up the pieces and assemble them in place. They need the twirly crane eventually anyhow.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  30. #5070
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    Quote Originally Posted by Trebuchet View Post
    I'm thinking that final segment waiting to be lifted will the last to be installed in one piece. Then they'll put in a twirly crane to lift up the pieces and assemble them in place. They need the twirly crane eventually anyhow.
    Is this a technical term??

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