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Thread: SpaceX

  1. #4681
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    Quote Originally Posted by Nicolas View Post
    Meanwhile, the Everyday Astronaut lost signal from his expensive array of camera's when SN11 became the foggiest display of fireworks ever. Here's hoping that it merely took out a transmitter and most of his equipment is still OK. He has to wait before he can enter the area to check.

    If not, people are suggesting him to auction off the remains.

    His camera's were about 15 foot left of NasaSpaceFlight's setup which survived, but it takes only one good hit to be history.

    I wonder how precisely above the landing pad they are when trying to do the flip; perhaps the debris field would have been more contained if they just let it body slam into the pad?
    LabPadre has done some panning search&rescue an found that EverydayAstronaut's Tripod Of Expensive Stuff is still standing.So at least a majority will likely have survived; potentially as mundane as the tripod being knocked out of alignment causing loss of signal. Good news from that front!
    With sufficient thrust, water towers fly just fine.

  2. #4682
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    Quote Originally Posted by cjameshuff View Post
    That he mentions the possibility that SN15's existing upgrades might help seems to indicate it's not obviously a result of an engine failure, at least as far as the telemetry indicates.
    If there was some sort of catastrophic fuel system or engine failure, it might have been just a manufacturing or material defect...

  3. #4683
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    SN15

    Musk wasn't kidding that SN15 is coming fast...

    Chris B - NSF ✓ @NASASpaceflight
    Starship SN15 has been moved out of the Mid Bay while its Nosecone and Barrel Section have been stacked in front of the Windbreak.

    Elon noted SN15 has 100s of design improvements (structures, avionics/software & engine).

    Captured as always by the amazing Mary (@BocaChicaGal).

    20210331_100555.jpg
    20210331_100558.jpg

    https://twitter.com/nasaspaceflight/...55522764734464

  4. #4684
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    https://www.youtube.com/watch?v=MoEv0dkWlvA

    Scott Manley too cannot see through fog. Apparently, the flight termination system wasn't used but the debris indicates a significant "all at once" tank explosion (in flight at that), unlike eg SN10's failure which was rather a "the bottom fell out" explosion.
    With sufficient thrust, water towers fly just fine.

  5. #4685
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  6. #4686
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    Crew Dragon: Crew-2

    Yup, the same booster (B1061) for Crew-1 and Crew-2. Whodathunk NASA would do this a few years ago?

    Date: April 22, 2021
    Time: 0611 Eastern (10:11 UT)
    Pad: LC-39A
    Booster: B1061.2 (Crew-1)
    Booster recovery: yes
    Spacecraft: C206.2 Endeavour (DM-1)

    Crew

    Commander: Shane Kimbrough (NASA)
    Pilot: K. Megan McArthur (NASA)
    Mission Specialist 1: Akihiko Hoshide (JAXA)
    Mission Specialist 2: Thomas Pesquet (ESA)

    IMG_20210401_192943.jpg IMG_20210401_192939.jpg

    https://twitter.com/astro_kimbrough/...62743363162114
    Last edited by docmordrid; 2021-Apr-02 at 12:25 AM.

  7. #4687
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    Quote Originally Posted by docmordrid View Post
    Yup, the same booster (B1061) for Crew-1 and Crew-2. Whodathunk NASA would do this a few years ago?
    Well there was STS...But as far as capsule flights go, it's a new era.

    Also first capsule flight ever with 4 people on board?
    With sufficient thrust, water towers fly just fine.

  8. #4688
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    Crew 1 already had four, IIRC.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  9. #4689
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    Woops I forgot that Crew 1 already happened, I had DEMO 2 in mind (2 people on board).
    With sufficient thrust, water towers fly just fine.

  10. #4690
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    Musical Dragons

    Before Crew-2's Endeavour launches, Crew-1's Resilience will be moved from the Harmony module's Forward port to the Zenith port. Endeavour will then dock at Harmony Forward, and a few days later Resilience returns home to make room at Zenith for Cargo Dragon CRS-22 in June. According to the wiki article, Resilience flies again on September 15 for Inspiration 4, this time with the observation cupola attached.
    Last edited by docmordrid; 2021-Apr-02 at 11:53 PM.

  11. #4691
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    The thrust simulator jacks are going into Pad A, preparing for the SN-15 tests. It should roll out next week.

    BN-3's aft tank is being built, and SN-15 is moving its fins.

    https://youtu.be/R1tvHop8JB4

  12. #4692
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    Quote Originally Posted by docmordrid View Post
    The thrust simulator jacks are going into Pad A, preparing for the SN-15 tests. It should roll out next week.

    BN-3's aft tank is being built, and SN-15 is moving its fins.

    https://youtu.be/R1tvHop8JB4
    Any news on the explosion of SN 11?

  13. #4693
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    Nothing official yet, but NSF is saying a likely explosive engine failure. If true, ISTM that took out the lower done and with it the methane header tank. LCH4 + LOX + hot shrapnel = boomski.

    Those were the last Raptor's of that design, a new Raptor block is debuting in SN-15.

  14. #4694
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    Quote Originally Posted by docmordrid View Post
    Nothing official yet, but NSF is saying a likely explosive engine failure. If true, ISTM that took out the lower done and with it the methane header tank. LCH4 + LOX + hot shrapnel = boomski.

    Those were the last Raptor's of that design, a new Raptor block is debuting in SN-15.
    Good. All the recent failures were engine related, and getting worse instead of better.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  15. #4695
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    Quote Originally Posted by Trebuchet View Post
    Good. All the recent failures were engine related, and getting worse instead of better.
    SN9 might have been an engine issue, but SN8 and SN10 were both fuel system related. If true, SN11 would be the first and only time an engine has failed explosively on one of these prototypes, and given the early state of development of both engine and vehicle, it was likely to happen sooner or later. One explosive engine failure doesn't establish much of a trend.

  16. #4696
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    What does ITSM mean?


    CJSF
    "I like the stories
    About angels, unicorns and elves
    Now I like those stories
    As much as anybody else
    But when I'm seeking knowledge
    Either simple or abstract
    The facts are with science"

    -They Might Be Giants, "Science Is Real"


    lonelybirder.org

  17. #4697
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    I'm not sure, but it seems to me that ISTM means it seems to me.

    And that "done" should be "dome" but ISTM that you got that. See? I used it in a sentence.
    With sufficient thrust, water towers fly just fine.

  18. #4698
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    Quote Originally Posted by Nicolas View Post
    I'm not sure, but it seems to me that ISTM means it seems to me.

    And that "done" should be "dome" but ISTM that you got that. See? I used it in a sentence.
    That's what I fit into his thoughts. Gotta be a text junkie for some of these abbreviations.

  19. #4699
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    Quote Originally Posted by cjameshuff View Post
    SN9 might have been an engine issue, but SN8 and SN10 were both fuel system related. If true, SN11 would be the first and only time an engine has failed explosively on one of these prototypes, and given the early state of development of both engine and vehicle, it was likely to happen sooner or later. One explosive engine failure doesn't establish much of a trend.
    Ok. "Propulsion system", then.

    It occurred to me yesterday that perhaps the two "GSE" tanks and that blunt ended nosecone are leftovers from the cancelled SN12, 13, and 14. Possible?

    Also, I think originally "S/N" was "Serial Number". But now we have BN1 assembled and BN2 and 3 in work. Should "SN" now be "Starship Number"?
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  20. #4700
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    'splosion number and boom number?
    With sufficient thrust, water towers fly just fine.

  21. #4701
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    FYI...

    According to Musk Tweet at 6:46AM April 5th, 2021:

    "Ascent phase, transition to horizontal & control during free fall were good.

    A (relatively) small CH4 leak led to fire on engine 2 & fried part of avionics, causing hard start attempting landing burn in CH4 turbopump.

    This is getting fixed 6 ways to Sunday."

    https://twitter.com/elonmusk/status/1379022709737275393


    The concern expressed in previous replies above at the failures is understandable given rocketry's history. Traditionally, any prototype rocket launched was a test of the actual product manufactured in a low volume. Very little margin for error and each prototype represents an immense investment.

    Along comes Musk and out of his toolshed in South Texas, he proceeds with a different model. Their intent is to amortize costs over unheard of quantities of rockets for medium volume manufacturing. As with Tesla with cars, SpacedX is targeting the re-engineering of rocket manufacturing, which suits building many testable prototypes. They even state they expect lots of RUDs. As with F9's early landing attempts, I find it thrilling to see the slow (and explosive!) progress.

    Cheers,

  22. #4702
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    Yup, Musk has a habit of re-writing the textbook in whatever market he enters. He's doing he same with tunnel boring and brain-machine interfaces. Tesla's Grohmann subsidiary with Germany's CureVac (pharma company) patented a bio-reactor for producing mRNA vaccines and treatments.

    Quote Originally Posted by CJSF View Post
    What does ITSM mean?
    Paleo forum talk

    ISTM: It Seems To Me
    OTOH: On The Other Hand
    IIRC: If I Remember Correctly
    IMO/{IMHO}: In my {Humble} Opinion

    etc.
    Last edited by docmordrid; 2021-Apr-05 at 04:14 PM.

  23. #4703
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    Now they're making pad propellant tanks using Starship tooling...

    IMG_20210405_195939.jpg

    https://twitter.com/bocachicagal/sta...59435046699025

  24. #4704
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    Quote Originally Posted by docmordrid View Post
    Now they're making pad propellant tanks using Starship tooling...

    IMG_20210405_195939.jpg

    https://twitter.com/bocachicagal/sta...59435046699025
    Makes sense, they have what is basically a tank factory there so doesn't really make sense to buy them in unless they have to

  25. #4705
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    Quote Originally Posted by docmordrid View Post
    Now they're making pad propellant tanks using Starship tooling...

    IMG_20210405_195939.jpg

    https://twitter.com/bocachicagal/sta...59435046699025
    I speculated above that those could be made from components left over from the cancelled SN 12, 13, and 14. If you've already made the rings and domes but have decided to move on to an improved design, why not get some use out of them?

    I assume they'll be mounted on those circular concrete foundations at the launch site.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  26. #4706
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    Quote Originally Posted by docmordrid View Post
    Now they're making pad propellant tanks using Starship tooling...

    IMG_20210405_195939.jpg

    https://twitter.com/bocachicagal/sta...59435046699025
    Doesn't it odd that there is no ground protection around the base, being so close to the road?

  27. #4707
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    Quote Originally Posted by bknight View Post
    Doesn't it odd that there is no ground protection around the base, being so close to the road?
    It's on the road, being moved from the manufacturing site to the launch site.

  28. #4708
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    Quote Originally Posted by cjameshuff View Post
    It's on the road, being moved from the manufacturing site to the launch site.
    That information would have been beneficial contained in the initial post.

  29. #4709
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    Quote Originally Posted by cjameshuff View Post
    It's on the road, being moved from the manufacturing site to the launch site.
    That information would have been beneficial contained in the initial post. But after opening Twitter it was described, my not reading tweets.

  30. #4710
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    SpaceX is launching 60 Starlink satellites tomorrow, April 7 at 12:34 p.m. EDT from SLC-40 in Florida https://www.spacex.com/launches/index.html

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