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SpaceX Starship SN10 experimental test vehicle

Discussion in 'SpaceX' started by Grendal, Feb 9, 2021.

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  1. Grendal

    Grendal SpaceX Moderator

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    #1 Grendal, Feb 9, 2021
    Last edited by a moderator: Mar 4, 2021 at 1:02 PM
    SpaceX has rolled out SN10. It is currently scheduled to continue testing a high altitude launch, flip maneuvers, landing with the new three engine initial burn. Hopefully the third time's the charm.

    Launch Date: Mid-Feb
    Launch Window: TBD
    Launch site: Launch Pad Test Stand 2 - Boca Chica, Texas
    Mass: TBD
    Altitude Goal: 10 km

    SpaceX
    SpaceX Starship - Wikipedia
     
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  2. Grendal

    Grendal SpaceX Moderator

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    [​IMG]

    Three Raptors installed and cryo test happened yesterday.
     
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  3. Grendal

    Grendal SpaceX Moderator

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    [​IMG]
     
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  4. Cosmacelf

    Cosmacelf Well-Known Member

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    Elon mentioned in a tweet that one the gating factors getting this to production status is building enough raptor engines. Wild that ship building isn't the gating factor.
     
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  5. Grendal

    Grendal SpaceX Moderator

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    They are reusing engines on SN10. I know one of them is #39 and SpaceX is well into the 50's with Raptor engines.
     
  6. JohnnyEnglish

    JohnnyEnglish Member

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    It will be fantastic if the three engine initial burn leads to a successful landing.

    Really looking forward to them getting the heat shield on and testing re-entry techniques.
     
  7. Routybouty

    Routybouty Member

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    Let's hope that the temporary 3rd engine light won't over rotate!
     
  8. Electroman

    Electroman Supporting Member

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    Last time I thought it over-rotated even with just one engine..
     
  9. Cosmacelf

    Cosmacelf Well-Known Member

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    Yeah, sounds simple in concept, but I’m sure it is very difficult to do correctly.
     
  10. scaesare

    scaesare Well-Known Member

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    One of the things that struck me with the SN8 groundpad-camera perspective was the two engines gimbled in wildly opposite directions when trying to cancel out the rotation... certainly seems lack of the second engine to do that is why SN9 over-rotated:

    sn8.png
     
  11. Cosmacelf

    Cosmacelf Well-Known Member

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    The software probably wasn't programmed to take into account the possibility of only one engine working, since if that was the case, the rocket is lost anyways, so what's the point. That would mean you'd see all sorts of weirdness since the software was trying to control the rocket based on an an incorrect understanding of what was really going on.
     
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  12. miimura

    miimura Well-Known Member

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    I would assume that they would have real time feedback of the thrust of each engine, based on strain gauges on the engine support structure. If that's the case, the computer knew there wasn't sufficient thrust and it was beyond the control parameters.
     
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  13. Grendal

    Grendal SpaceX Moderator

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    #13 Grendal, Feb 24, 2021
    Last edited: Feb 24, 2021
    Static Fire happened this morning. 55 minutes into this webcast. There was an issue with one of the Raptors and Elon tweeted that they will be replacing that one.


    New Raptor has already been seen heading out to the pad to get switched out.
    [​IMG]
     
  14. Grendal

    Grendal SpaceX Moderator

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    Engine swapped out and a new static fire happened today. At 26:00 in the stream:
     
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  15. Electroman

    Electroman Supporting Member

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    So when is it flying? this wednesday?
     
  16. 808?

    808? Member

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  17. HVM

    HVM Savolainen

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    wenhop.jpg


    "As early as Wednesday, March 3, the SpaceX team will attempt a high-altitude flight test of Starship serial number 10 (SN10)" -SpX
    "Starship launch tomorrow. Window opens at 9am." -Elon
     
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  18. Grendal

    Grendal SpaceX Moderator

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  19. favo

    favo P3D+ owner

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    Aborted at T minus 0.1 seconds. Raptor thrust out of spec, it seems. They are looking at data to see if they can recycle and try again before launch window closes at 6:30 PM local time (Central).

    SpaceX webcast is still live.
     
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  20. HVM

    HVM Savolainen

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