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SpaceX Starship Flight 13 livestream [video]

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Re: SpaceX Starship Flight 13 livestream [video]

#101

Post by stinkbeetle »

a34729t wrote: post #41
modeless wrote: post #14

Successful Raptor on-orbit relight demo! That should clear the next flight to go to orbit and deploy operational satellites! Big milestone for the program. And the ship landing was so soft it didn't even explode! That's never happened before. And it's still connected to Starlink too. The ship's cameras are still working underwater! I wonder if they will be able to recover it intact? We're getting some great views of…

They have a much biglier support vessel this time, almost 300ft long IIRC. So maybe they can recover it?

It might be possible. Allegedly they had previously asked the Australian government about towing the ship back to a port.

Marine recovery can be much more difficult than it might seem though. Towing this nearly 200ft structure weighing a decent fraction of the weight of the boat that is not designed to be seaworthy, potentially full of explosive gasses and that could rapidly start breaking up and taking on water, nearly 300 nautical miles back to shore, would be quite difficult and dangerous. I would be impressed if they ever do it.

Re: SpaceX Starship Flight 13 livestream [video]

#103

Post by ggreer »

at-fates-hands wrote: post #73
y0ssar1an wrote: post #54

Earlier quoted context omitted.

Not me! I'm rooting against SpaceX lol Starship is the SpaceX Cybertruck - lots of impressive engineering, but still doomed by terrible design choices from you-know-who. Stainless steel is just such a terrible choice for a rocket this large. Doomed the whole enterprise. I know launches are exciting. Landings, doubly so. But eight launches to get to the moon is not a good rocket. Sorry.

>> Stainless steel is just such a terrible choice for a rocket this large. Honest question, but what do they usually use?

Aluminum alloy and carbon fiber, because both have high strength to weight ratios. Steel is denser, so its specific strength isn't as high. But it retains strength at both lower & higher temperatures, and it's much cheaper. It's also cheaper/quicker to modify a steel design, as welding is easier than aluminum (at least for low carbon steels used in Starship). And if the same structure were made of carbon fiber, it would likely have to be fabricated from scratch.

I think choosing steel has helped Starship, as it allowed the ship to survive reentry and land in the ocean despite heat shield failures. Had the ship been made of aluminum, I'm certain earlier missions would have broken up when the aluminum heated up and lost its strength.

Re: SpaceX Starship Flight 13 livestream [video]

#104

Post by [deleted] »

WalterBright wrote: post #93
atq2119 wrote: post #65

Earlier quoted context omitted.

[flagged]

If he meant it to be a nazi salute, why did he do it in conjunction with saying "I give my heart to you"? Currently on TV is a WW2 documentary narrated by Tom Hanks. It's pretty good, with significant coverage of nazis. I recommend watching it. I'm a bit of a history wonk, and have read extensively about WW2. I'm afraid I don't see any parallels between the nazis and Musk.

[deleted]

Re: SpaceX Starship Flight 13 livestream [video]

#105

Post by dylan604 »

ChuckMcM wrote: post #40
ChuckMcM wrote: post #16

Earlier quoted context omitted.

Yup. Some of the Youtubers (like NASA Spaceflight) had video of it hitting the water pretty fast and hard. That said, this is the only test failure so far. I'm cautiously hopeful they get Ship to touch down. (it will explode after it does because of physics but stepping lightly onto the ocean will be a win)

And I sit corrected as it was able to lay down without rupturing the tanks and 'sploding. So that's another win. What I find really amazing and cool is that while its reentering the engineering team can drive it around and look at heating effects on tiles/spars/etc all while retrieving telemetry by Starlink. What many people don't realize is that early capsules were the shape they were because that was the limit of w…

The size of ship being big enough to create a hole in the ionization to continue to communicate with Starlink is something that I think gets underappreciated.

Re: SpaceX Starship Flight 13 livestream [video]

#106

Post by chasd00 »

usehand wrote: post #32
ChuckMcM wrote: post #16

Earlier quoted context omitted.

Yup. Some of the Youtubers (like NASA Spaceflight) had video of it hitting the water pretty fast and hard. That said, this is the only test failure so far. I'm cautiously hopeful they get Ship to touch down. (it will explode after it does because of physics but stepping lightly onto the ocean will be a win)

I guess they also failed to explode it

from what i understand it kind of is a failure. It's suppose to tip over, explode, and sink. That way you don't have all this ITAR regulated tech floating around in international waters.

Re: SpaceX Starship Flight 13 livestream [video]

#109

Post by WalterBright »

estearum wrote: post #83
WalterBright wrote: post #60

Earlier quoted context omitted.

> telling his millions of followers that a rescue worker was a pedophile Only after the rescue worker, on live TV, said to millions that Musk could stick his submarine up his ass.

[flagged]

[flagged]

Re: SpaceX Starship Flight 13 livestream [video]

#110

Post by dylan604 »

andsoitis wrote: post #28
s08148692 wrote: post #24

Real time reentry plasma field will never get old. Amazing

Goosebumps. And the visuals from Starlink for the entire journey is freakin' awesome.

With a decent soundtrack as well instead of the boring atmospheric stuff associated with space themes
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