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    Starship Flight 7

    (www.spacex.com)
    649 points chinathrow | 11 comments | 16 Jan 25 21:25 UTC | HN request time: 0s | source | bottom
    1. inglor_cz ◴[16 Jan 25 23:13 UTC] No.42732146[source]▶
    Looks like work of the Flight Termination System. Something measurable had to go very wrong.
    replies(3): >>42732239 #>>42732422 #>>42732970 #
    2. olex ◴[16 Jan 25 23:24 UTC] No.42732239[source]▶
    While the telemetry was still going, you could see Ship engines going out one by one. Earlier when there was video there was what looked like flames visible inside one of the flap hinges, definitely shouldn't be there on ascent. Presumably something failed internally and caused the Ship to shut down before reaching target trajectory, at which point either FTS or the failure itself caused it to blow up, as seen on the Insta reel.
    replies(1): >>42732632 #
    3. JumpCrisscross ◴[16 Jan 25 23:46 UTC] No.42732422[source]▶
    > Something measurable had to go very wrong

    Or slightly wrong. An FTS is programmed to be conservative. Particularly on unmanned flights. Doubly particularly on reëntry. Triply so on experiments bits.

    replies(1): >>42733036 #
    4. enraged_camel ◴[17 Jan 25 00:18 UTC] No.42732632[source]▶
    On the NSF youtube channel they pointed out that at some point the methane indicator started decreasing much faster than the LOX indicator, which points to some sort of leak. It would explain why the engines started to shut down.
    5. enragedcacti ◴[17 Jan 25 01:11 UTC] No.42732970[source]▶
    It wasn't FTS, it just blew up: https://x.com/SpaceX/status/1880033318936199643
    replies(1): >>42733375 #
    6. DeepYogurt ◴[17 Jan 25 01:23 UTC] No.42733036[source]▶
    Depends on the programmers I guess ¯\_(ツ)_/¯
    replies(2): >>42733061 #>>42734425 #
    7. JumpCrisscross ◴[17 Jan 25 01:27 UTC] No.42733061{3}[source]▶
    > Depends on the programmers I guess

    It depends on the Air Force.

    8. anothertroll456 ◴[17 Jan 25 02:18 UTC] No.42733375[source]▶
    That doesn't negate FTS.
    replies(1): >>42733662 #
    9. enragedcacti ◴[17 Jan 25 03:04 UTC] No.42733662{3}[source]▶
    Imo if SpaceX thought it was possibly FTS they wouldn't say RUD. They still had telemetry for multiple seconds as it pitched wildly and engines failed, if FTS didn't trigger then it probably didn't at all.
    replies(1): >>42733808 #
    10. anothertroll456 ◴[17 Jan 25 03:32 UTC] No.42733808{4}[source]▶
    Yeah I thought about that some more and at that altitude and speed the FTS is usually already deactivated.
    11. BuyMyBitcoins ◴[17 Jan 25 05:38 UTC] No.42734425{3}[source]▶
    All of the exception handling was spent on the try/catch of the booster.