@dang: can you please fix the link? It's supposed to be https://twitter.com/i/broadcasts/1dRKZEWQvrXxB
@dang is a no-op. Email at hn@ycombinator.com if you want to reach the mods.
Starship Integrated Flight Test 2 at 7 Am Central Time
321–330 of 559 posts
Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#322When (launch window opening) * 4 hours from now * 5 AM Pacific Time * 7 AM Central Time (local) * 8 AM Eastern Time * 2 PM Central European Time Live Media * Official yet channel: https://www.youtube.com/@SpaceX * Labpadre: https://www.youtube.com/watch?v=DIJTeeZj7k4 * NASASpaceflight: https://www.youtube.com/watch?v=mhJRzQsLZGg * EverydayAstronaut: https://www.youtube.com/watch?v=6na40SqzYnU * TheLaunchPad: https://…
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Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#323@dang: can you please fix the link? It's supposed to be https://twitter.com/i/broadcasts/1dRKZEWQvrXxB
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Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#324Impressive, but does anyone know where will the debris from the second stage re-enter?
A rough estimate from Jonathan McDowell (well known for tracking lots of space objects and launches) is that the debris landed north east of the Turks and Caicos islands.
https://nitter.net/planet4589/status/1725873032244195495
Edit: a newer update shows direct evidence of the debris field area https://nitter.net/planet4589/status/1725917544114974995#m
Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#325Earlier quoted context omitted.
Imagine explaining to the court that the passengers were blown up by your AI algorithm... I expect these things are only on test flights indeed.
I'm pretty sure Falcon 9 carrying crew has an AFTS. Challenger was destroyed by an FTS system as well despite having crew on board. I think it's just a risk you have to take to go on a rocket ride.
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Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#326Earlier quoted context omitted.
So you believe if there was no moon program then we would magically have universal healthcare, housing, non-punitive criminal justice systems. Very ignorant take
If people had more humanity, they would be focusing on getting universal healthcare housing, and a non-punitive justice system before we focus things like putting a few humans on a rock in space. Why is it that the most difficult things to do are the most caring things?
I lived in SF for 5 years. I'll go ahead and stick with the punitive justice system, thanks.
Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#327Earlier quoted context omitted.
Imagine explaining to the court that the passengers were blown up by your AI algorithm... I expect these things are only on test flights indeed.
> Imagine explaining to the court that the passengers were blown up by your AI algorithm... Autonomous flight termination systems are not "AI". It uses an on-board GPS and INS to figure out where the rocket is. It applies a pre-defined set of rules to the state vector and if any one of the rules fail it terminates the flight. You can read more about them here: https://www.gps.gov/cgsic/meetings/2019/valencia.pdf
GOFAI is still AI in my books.
*old man shouts at The Cloud*
Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#328Earlier quoted context omitted.
I could believe that hot staging might've affected the booster, since it seemed to blow up right as it tried to light the engines again for boostback. But I don't think the ship would've made it so long if it were seriously damaged by the hotstaging.
Damage to the grid fins mechanism is a potential failure mode here. Even a small amount of damage to the flight control systems could make the procedure uncontrollable and eventually trigger the FTS.
At this altitude, the vehicle is pretty much in the vacuum and grid fins have absolutely no control authority. It could have resulted in failure later on but not at that point where the booster blew up.
Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#329Earlier quoted context omitted.
Wonder if hot staging caused issues with both vehicles or it was two separate issues.
I could believe that hot staging might've affected the booster, since it seemed to blow up right as it tried to light the engines again for boostback. But I don't think the ship would've made it so long if it were seriously damaged by the hotstaging.
How could hot staging affect the engines of the booster? If it affected the tanks then the three engines still running through separation would also fail so no flip-around could be possible with no thrust to go with.
Re: Starship Integrated Flight Test 2 at 7 Am Central Time
#330Earlier quoted context omitted.
Surely the final Starship carrying passengers will not have auto flight termination?
Imagine explaining to the court that the passengers were blown up by your AI algorithm... I expect these things are only on test flights indeed.
If I were writing such a system it would have very straightforward if-statements linked directly to FAA requirements. No faffy AI stuff is needed.