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Space and Science BS Thread

Discussion in 'Off-Topic Discussion' started by Monster Coma, Oct 29, 2013.

  1. May 3, 2021 at 7:56 PM
    #4741
    .劉煒

    .劉煒 Well-Known Member

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    tl;dr

    It's a test programme with a lot of progress, and building new ones is a little behind the testing. Going from 'belly flop' to 'landing on legs' is a hard problem with lots of sloshing fuel and needing to restart rocket engines. SN15 is the first of a series with updated tankage designs compared to the previous bunch - also it supports a newer revision of the 'raptor' methane/oxygen engine. The next several will also be of this design.

    As for landing legs - the first revision were simple crush cores that swung down and locked in via gravity, as a 'rough in' stand-in kinda leg.
     
  2. May 3, 2021 at 7:57 PM
    #4742
    .劉煒

    .劉煒 Well-Known Member

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    Eh, that's way down the list for me. Getting that relight ontime and good raptor performance with lots of appropriate fuel flow is gonna be key. Parameter tweaking, next - but this whole thing doesn't work without the engines doing what they need to throughout the whole maneuver.
     
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  3. May 3, 2021 at 8:14 PM
    #4743
    .劉煒

    .劉煒 Well-Known Member

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  4. May 3, 2021 at 9:50 PM
    #4744
    2008taco

    2008taco Well-Known Member

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    The legs they have are good enough for what they're doing right now, attempting to land on a nice solid, level, concrete pad. Sure with their crumple zones they are 1 time use, but so are the rockets they're installing them on. "Real" legs wouldn't really be any better, but it would consume a lot more time and resources to install them on a rocket with a decent probability of going boom.
     
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  5. May 4, 2021 at 2:55 AM
    #4745
    PzTank

    PzTank Stuck In The Well

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    Nope. They’ll stick this one for sure.

    If only as a major FU to BO and NASA...
     
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  6. May 4, 2021 at 2:57 AM
    #4746
    PzTank

    PzTank Stuck In The Well

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    Wasn’t that something... So cool to see for however long it lasted.
     
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  7. May 4, 2021 at 4:21 AM
    #4747
    PzTank

    PzTank Stuck In The Well

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    My Name is Rahl likes this.
  8. May 4, 2021 at 4:51 AM
    #4748
    2008taco

    2008taco Well-Known Member

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  9. May 4, 2021 at 5:23 AM
    #4749
    My Name is Rahl

    My Name is Rahl President of the Taco-Obsessed fanclub!

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  10. May 4, 2021 at 5:23 AM
    #4750
    My Name is Rahl

    My Name is Rahl President of the Taco-Obsessed fanclub!

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    Oh, yeah...that too.
     
  11. May 4, 2021 at 8:43 AM
    #4751
    PzTank

    PzTank Stuck In The Well

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    SN15 scrubbed for today :pout:

    On a positive note- my Inspiration4 patch is on it’s way :woot:
     
  12. May 4, 2021 at 8:53 AM
    #4752
    Lurkin

    Lurkin Well-Known Member

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    The Fourth is weak with this one.....






    :rimshot:
     
  13. May 4, 2021 at 11:11 AM
    #4753
    .劉煒

    .劉煒 Well-Known Member

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    Wish I was going, but yeah. :p
     
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  14. May 4, 2021 at 11:28 AM
    #4754
    Scott B.

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    [​IMG]

    WATCH LIVE: STARLINK MISSION

    SpaceX is targeting Tuesday, May 4 for launch of 60 Starlink satellites from Launch Complex 39A (LC-39A) at Kennedy Space Center in Florida. The instantaneous window is at 3:01 p.m. EDT, or 19:01 UTC, and a backup opportunity is available on Wednesday, May 5 at 2:39 p.m. EDT, or 18:39 UTC.

    The Falcon 9 first stage rocket booster supporting this mission previously supported launch of Telstar 18 VANTAGE, Iridium-8, and six Starlink missions. Following stage separation, SpaceX will land Falcon 9’s first stage on the “Of Course I Still Love You” droneship, which will be located in the Atlantic Ocean. One half of Falcon 9’s fairing previously supported two Starlink missions.

    You can watch the launch webcast live starting about 15 minutes before liftoff. To see if Starlink is available in your area, visit starlink.com.



    [​IMG]
     
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  15. May 4, 2021 at 12:20 PM
    #4755
    Farcedude

    Farcedude Well-Known Member

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    9th recovery in the bag. Damn impressive (although you'd think they'd have figured how to not have the video cut out at touchdown).
     
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  16. May 4, 2021 at 12:30 PM
    #4756
    Scott B.

    Scott B. Well-Known Member

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    I assumed it was intentional - you know, just in case...
     
  17. May 4, 2021 at 12:35 PM
    #4757
    Farcedude

    Farcedude Well-Known Member

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    You'd think that ... except they've been very happy to show their failures after the fact.
     
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  18. May 4, 2021 at 1:18 PM
    #4758
    Scott B.

    Scott B. Well-Known Member

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    Not failures - just engineering trials!
     
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  19. May 4, 2021 at 1:22 PM
    #4759
    PzTank

    PzTank Stuck In The Well

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    The first stage video was exceptional (up until landing).

    You really got a sense of it achieving apogee and the transition to decent.

    I hope never not to be impressed when they hit a bullseye on the drone ship. It’s freaking amazing.
     
    My Name is Rahl likes this.
  20. May 4, 2021 at 2:57 PM
    #4760
    2008taco

    2008taco Well-Known Member

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    Iirc that would require another ship recording from a distance and they don't think it's worth it. The fact that we get live video at all with the force behind rocket engines is amazing.
     
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