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Starship's Twelfth Flight Test

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21–30 of 124 posts

Re: Starship's Twelfth Flight Test

#21
post #14

This is the first flight of the new engines. They look so much sleeker and simpler than the previous two generations: https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQGMtnP... * And supposedly with a 20% power increase to boot!

The stats are pretty out there. Iirc just the fuel pump, which you can probably pick up and put on your desk, generates 100k HP.

Well, it's powered by bleeding exhaust from a very big rocket.

Re: Starship's Twelfth Flight Test

#22
post #3
post #2

Dang, they aren't catching the booster this time, but I guess V3 is practically a new vehicle and validating the next Starship launch is probably too critical to risk damage to the launch site for now.

Oh hey, you're right! Somehow I read "water landing" and interpreted it as landing on one of the barges (ocisly or jrti) any clue why that isn't the case? Is super heavy just too big for the barges maybe?

They won't use barges because the booster has no landing legs (to save weight), and because the booster is massive compared to Falcon 9. Also Starship is meant for rapid reusability, and it can take days to return a barge to port and unload the booster. Getting barge landings to work would be a distraction from the goal of Starship, and SpaceX already has Falcon 9 for current payloads.

And they won't attempt a catch with the first V3 booster because it's not worth the risk. They can build a new booster every couple of months. It takes much longer to build the launch/catch tower, and they don't have any spare towers yet. A catastrophe during a booster/ship catch would set them back a year, so they'll only attempt a catch if they're confident it will succeed.

Re: Starship's Twelfth Flight Test

#23

I am watching Elon give a long speech about the launch, scarily delivered at high speed, without pause. Including a Bitcoin marathon promotional informercial complete with an on-screen scan code. "That QR code is your boarding pass." He just repeated several paragraphs verbatim from a few minutes ago. He occasionally mentions the aspirational 100x reduction in launch costs. AI slop. Yuck, Youtube. Surely Google could…

It probably is AI generated. My very first exposure to "AI spam" was trying to watch one of the Starship test launches, the second one if I remember correctly. That was around the time that Elon bought Twitter, so he removed all publicity video streams from third-party platforms like YouTube and moved them to Twitter's streaming service. I wanted to watch this on my big TV, so I was hunting through YouTube for the st…

> Ironically this meant that the only remaining matches were 100% scams.

I am wondering if some of this is unmarked paid advertising. I can't imagine any other incentive for Youtube to effectively align its brand with Ick.

Ads, as one of the prophets said, are the Devil.

Re: Starship's Twelfth Flight Test

#24
I don't know why they aren't doing more booster catches. Kind of a bit disappointed they keep skipping. Either they can land them or they can't. If it's not consistent then they're avoiding the possible failure so their stock price (launching soon) stays up, otherwise just prove it's solid and actually works.

Re: Starship's Twelfth Flight Test

#27

I don't know why they aren't doing more booster catches. Kind of a bit disappointed they keep skipping. Either they can land them or they can't. If it's not consistent then they're avoiding the possible failure so their stock price (launching soon) stays up, otherwise just prove it's solid and actually works.

V3 booster has a lot of changes, including a brand new downcomer, an integrated hot-staging ring, and 3 instead of 4 grid fins. Chances of a RUD are not 0.

If Flight 12 blows up in space, they've already got Flight 13 almost assembled. It might delay them a month, maybe. But if a returning booster destroys the launch pad, it would delay them much longer--maybe a year.

With those stakes, it makes sense to not try a booster catch until they're sure it's going to work.

Re: Starship's Twelfth Flight Test

#28
post #14

Earlier quoted context omitted.

The stats are pretty out there. Iirc just the fuel pump, which you can probably pick up and put on your desk, generates 100k HP.

Well, it's powered by bleeding exhaust from a very big rocket.

One of my favorite clips to give a sense of scale for rockets is this one. https://www.youtube.com/watch?v=70u748VALt4

I show someone and then I tell them, that's not the rocket exhaust. That's the exhaust for the engine that runs the fuel pump for the rocket.

Re: Starship's Twelfth Flight Test

#30

I don't know why they aren't doing more booster catches. Kind of a bit disappointed they keep skipping. Either they can land them or they can't. If it's not consistent then they're avoiding the possible failure so their stock price (launching soon) stays up, otherwise just prove it's solid and actually works.

They can build new boosters pretty quickly. New launch/catch towers take a lot longer, and they don't have any redundancy yet. Also they weren't going to reuse their V2 boosters once V3 was ready, so they could learn more by testing things like intentionally disabling an engine during the landing burn or flying at a higher angle of attack.
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