Author Topic: Starship/SuperHeavy orbital Flight Test LIVE  (Read 8983 times)

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Online wraperTopic starter

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Starship/SuperHeavy orbital Flight Test LIVE
« on: April 20, 2023, 10:29:04 am »
Second attempt in two hours, stream starts  at 12:45 GMT

 
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Offline iMo

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #1 on: April 20, 2023, 12:12:32 pm »
Readers discretion is advised..
 

Online wraperTopic starter

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #2 on: April 20, 2023, 12:56:57 pm »
Stream started, launch in 30 minutes. Here's another view:

 

Offline rdl

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #3 on: April 20, 2023, 01:40:21 pm »
Well, they didn't blow up Stage 0, so I guess that makes it a success.
 

Offline tom66

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #4 on: April 20, 2023, 01:59:49 pm »
Somebody forgot to turn on the stage separators.   ::)

I wonder if the computer was trying to stabilise the rotation before separation.  They determined it probably wasn't going to stabilise and so range control made the rocket not exist any more.

Also looks like they lost more than a few Raptors going up.  But, space is hard!  And you've gotta appreciate the skill in trying to get something this big launched and not destroying the whole pad in the process.
 

Offline iMo

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #5 on: April 20, 2023, 02:29:07 pm »
They had problems to get off the launch pad, had to make hard vector corrections to get the rocket straight, normally they would cancel it at that moment, but decided to follow the experiment further on (or/and get the rocket in a larger distance from the ground installations)..
Well, it was tried with so many first stage engines some 60y back, with zero result. Hopefully they will be more successful next time..

« Last Edit: April 20, 2023, 02:35:44 pm by iMo »
Readers discretion is advised..
 

Offline coppercone2

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #6 on: April 20, 2023, 03:20:43 pm »
rapid unscheduled disassembly  ;)
 

Offline rdl

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #7 on: April 20, 2023, 03:33:25 pm »
A super success. It was incredibly impressive how well it held together under all that stress.
 
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Offline AlbertL

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #8 on: April 20, 2023, 03:49:32 pm »
Ludicrous Mode.
 
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Offline David Hess

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #9 on: April 20, 2023, 06:22:31 pm »
I wonder if the computer was trying to stabilise the rotation before separation.

It was stable until the last of the three engines with steering capability shut down.  Some of the video shows only one engine with a gimbal mount still running.
 

Offline tom66

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #10 on: April 20, 2023, 06:31:08 pm »
I wonder if the computer was trying to stabilise the rotation before separation.

It was stable until the last of the three engines with steering capability shut down.  Some of the video shows only one engine with a gimbal mount still running.

Ah, that makes sense.  I heard that it can lose a maximum of two engines and still retain mission capability.  Six is clearly pushing it, even for a demo, and several of the failures appeared catastrophic.
 

Offline David Hess

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #11 on: April 20, 2023, 06:46:44 pm »
I have now seem some discussion suggesting that the hydraulic supply failed (exploded) so all gimbal steering would have been lost even if the engines were still operating.  This was the last booster (and Starship?) with hydraulic power for the steering.  Apparently the next one uses electrically powered actuators.
 

Online Monkeh

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #12 on: April 20, 2023, 06:55:47 pm »
I wonder if the computer was trying to stabilise the rotation before separation.

It was stable until the last of the three engines with steering capability shut down.  Some of the video shows only one engine with a gimbal mount still running.

The middle ring has gimbal mounts also, not just the centre three.
 

Offline SiliconWizard

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #13 on: April 20, 2023, 07:47:36 pm »
Impressive rocket.

But isn't the future 100% electrically powered rockets with big batteries? :-DD
 

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Offline iMo

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #15 on: April 20, 2023, 08:41:25 pm »
I wonder if the computer was trying to stabilise the rotation before separation.

It was stable until the last of the three engines with steering capability shut down.  Some of the video shows only one engine with a gimbal mount still running.

The middle ring has gimbal mounts also, not just the centre three.

The trouble started a couple of seconds after the ignition, imho - look at the heavy vectoring the rocket made some 100-200m over the ground in order to stay stable. Like low thrust in general, or low thrust in the gimballed engines. Such vectoring over the launchpad always means the vehicle is lost (soon or later, as it cannot achieve the planned trajectory).. Otherwise that first flight was impressive, indeed..
Readers discretion is advised..
 

Offline MathWizard

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #16 on: April 20, 2023, 09:08:58 pm »
Of all the things to go wrong, I would think by now that that should be the easy part. So I wonder what really led up to it ? Damage after launch? Or some coding done wrong, or some electrical oversight or interference ? Or something didn't separate properly, and it leaks something that blows up ?

Ok I just watched the video, it had problems long before separation was due to happen.
« Last Edit: April 20, 2023, 09:15:03 pm by MathWizard »
 

Offline coppercone2

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #17 on: April 20, 2023, 09:30:12 pm »
rapid unscheduled disassembly  ;)
Short version:
https://www.wsj.com/video/starship-explosion-video-watch-elon-musk-rocket-explode-after-launch/2EA61904-215F-4BFB-8EBE-7F940FA74C43.html

yeah I feel like there is politispeak behind this one. the rocket performed well until it failed catastrophically  ::)

With NASA it would be 'rocket exploded after launch' with elon musk you get some crazy shit. Whats with the people clapping when its spinning out of control too, bizarre! I just find it odd people are never that kind to NASA with... post launch analysis

Until I watched the video, even after trying to do 5 minutes of research, it was unclear to me if it exploded or not. Impressive PR  ??? I don't have any real problem with rockets exploding, I know their complicated especially when you are trying to be cheap, but damn the initial presentation I got seemed like it was made by Elliot Carver (James Bond, Tomorrow Never Dies)! It seems that is cleared up now.
« Last Edit: April 20, 2023, 09:38:03 pm by coppercone2 »
 

Offline AndyBeez

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #18 on: April 20, 2023, 09:37:51 pm »
Test launch - Tick
Test flight - Cross

At least our fellow engineers have a day job doing rocket science. Rejoice 8)
 

Offline boz

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #19 on: April 20, 2023, 09:38:14 pm »
awesome sight. Shame about all the exploding concrete blocks at liftoff, I thought that was a solved problem, also a shame the starship couldn't have separated, anyway good thing he has a few backup starships, will be back again for round 2  :popcorn:
Fearless diver and computer genius
 

Offline coppercone2

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #20 on: April 20, 2023, 09:39:45 pm »
This one struck me as amusing, glad they clarified (seriously)
 

Offline coppercone2

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #21 on: April 20, 2023, 09:43:47 pm »
and perhaps they should have added a voice over if there is clapping, like 'the traditional mission end clap has begun' because its just disturbing to see people clapping when their experiment just went up in smoke lol, wtf

I mean you can clap if a gymnast makes a mistake, but your not gonna clap if they impaled themselves on a pole vault or something. It seems like a explosion should exclude clapping unless its a bomb.  :-//
 
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Offline tom66

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #22 on: April 20, 2023, 09:44:51 pm »
yeah I feel like there is politispeak behind this one. the rocket performed well until it failed catastrophically  ::)

With NASA it would be 'rocket exploded after launch' with elon musk you get some crazy shit. Whats with the people clapping when its spinning out of control too, bizarre! I just find it odd people are never that kind to NASA with... post launch analysis

Until I watched the video, even after trying to do 5 minutes of research, it was unclear to me if it exploded or not. Impressive PR  ??? I don't have any real problem with rockets exploding, I know their complicated especially when you are trying to be cheap, but damn the initial presentation I got seemed like it was made by Elliot Carver (James Bond, Tomorrow Never Dies)! It seems that is cleared up now.

This kind of thing is the difference between NASA and the private sector providers like SpaceX though.

SpaceX embraces a Silicon Valley type mindset of "fail fast and often", whereas NASA would spend over 10 years designing, testing and simulating a new launch system with it launching perfectly first time (SLS).

Look at how much effort SpaceX spent on trying to get boosters to land.  They didn't care if they failed, because as far as they were concerned, the rocket was trash anyway.

I think there's a time and a place for this mindset, perhaps in aerospace engineering it makes some people nervous, but it is a unique attitude.  It's not tolerable if you have humans in danger, but it's tolerable when all it is, is some investors and billionaires cash. 
 

Offline coppercone2

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #23 on: April 20, 2023, 09:46:15 pm »
I just think they should have been more clear with the headline like 'test rocket explodes but delivers useful telemetry'.

Maybe its just me, but any time a big explosion is downplayed, it makes me a little nervous you know? I feel like someone is trying to alter my 'risk matrix'. I don't think anything good can come of people renaming explosions. Nothing wrong about being proud of making a explosion, its impressive and often useful, but its putting paint on a pond to rename it.
« Last Edit: April 20, 2023, 09:52:44 pm by coppercone2 »
 

Offline SiliconWizard

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Re: Starship/SuperHeavy orbital Flight Test LIVE
« Reply #24 on: April 20, 2023, 10:04:16 pm »
It's just the first test flight. I don't see a big problem with focusing on the good parts when the team considers they have reached their goals rather than focusing on the explosion.

I'm personally more concerned when people start downplaying other people's death. ::)
 


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