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Starship's Tenth Flight Test

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61–70 of 245 posts

Re: Starship's Tenth Flight Test

#61
post #42

Just saw the splash down. I think this was 100% successful test.

Not quite, but it's a major milestone. Still quite a bit of work to go on the rapid reusability part (burnt flaps, oxidized body, missing tiles, tile waterproofing). Starship might actually deliver payload to orbit on flight 11.

Re: Starship's Tenth Flight Test

#62
Are the tiles on Starship going to need replacing after flight like the Shuttle? There isn’t a permanent material that can handle all the heat yet? Serious question, my space expertise is only from KSP.

Re: Starship's Tenth Flight Test

#63
post #58

Some kind of failure in the lower engine area. Figure it's going to burn up on entry? EDIT: made it. I suppose it was meant to blow up on landing in the ocean? It would have been nice to examine the burned components — but perhaps they had not intended to retrieve it that far away anyway.

Maybe just some part of the construction (possibly even just the strinngers or simply some nook or cranny that is fully eclosed) got presurized or was pressurized for the whole time by just air that could not escape. That would be fine for the fligt so far - until it started to heat up from re-entry heating. The stainless steel would be still fine if heated to hundreads of degrees, but the expanding gass could maybe…

IIRC they have pressure vessels in the lower fins with some of the gasses they need. Maybe one of those was damaged and burst. To me it looked like something blew out the bottom of one of the fins (maybe got too hot) and hit the skirt.

Re: Starship's Tenth Flight Test

#64
post #42

Just saw the splash down. I think this was 100% successful test.

Not quite, but it's a major milestone. Still quite a bit of work to go on the rapid reusability part (burnt flaps, oxidized body, missing tiles, tile waterproofing). Starship might actually deliver payload to orbit on flight 11.

It accomplished all the goals for this flight. That’s 100% successful

Re: Starship's Tenth Flight Test

#65

So the starlink simulators its deploying right now are empty platters that will burn up in the atmosphere from what I understand. Next missions they’ll be real statlink sats. Are these different than regular sats? It sounds like they’re able to handle more bandwidth but I don’t know.

Next flight should be a mass simulator of at least 100 tons to orbit. This flight was around ~10 tons to almost orbit.

The economics of Starlink basically require high cadence Starship launches with 50+ Starlink v3 satellites on each flight.

Re: Starship's Tenth Flight Test

#66
post #52
post #42

Just saw the splash down. I think this was 100% successful test.

Yes, although one booster engine failed at the start. Not a big deal. :)

The nice thing about SpaceX’s rapid iteration philosophy (and having Starlink as its first “customer”) is that they can account for engine unreliability by building extra margin into early launches, fly with reduced payloads, collect data on failures, and improve the reliability over time.

Re: Starship's Tenth Flight Test

#67
post #62

Are the tiles on Starship going to need replacing after flight like the Shuttle? There isn’t a permanent material that can handle all the heat yet? Serious question, my space expertise is only from KSP.

The intention is to need minimal to no replacement between flights. Part of the purpose of these tests is to figure out how to do that.

The tiles themselves work fine, but how to best mount them? where do you need them? Can you make them thinner? do you need anything underneath? what kind of gap do you need between tiles? Those are the things they're hoping to understand in these tests.

The Shuttle tiles were technically reusable AFAIK. The issue was that they were very fragile and the Shuttle for the most part could not tolerate any heat getting through the tiles (being aluminum), so every flight needed to have a perfect heat shield. Starship is a bit better on that end, as stainless steel is a lot more capable of tolerating heat and I think the tiles are a bit less fragile. Still, would be ideal to figure out how to not drop any tiles.

Re: Starship's Tenth Flight Test

#68
post #62

Are the tiles on Starship going to need replacing after flight like the Shuttle? There isn’t a permanent material that can handle all the heat yet? Serious question, my space expertise is only from KSP.

Remains to be seen. That's what they want, but it's never been done before. (edit: clarity: they do NOT want to replace them after each flight.)

They're currently experimenting with things such as actively cooled tiles (which I presume were installed on this ship, since they were on the last two).

I personally think the likely best case is that they'll have to go over the ship and replace some here and there before launching again.

Re: Starship's Tenth Flight Test

#69
post #42

Just saw the splash down. I think this was 100% successful test.

Not quite, but it's a major milestone. Still quite a bit of work to go on the rapid reusability part (burnt flaps, oxidized body, missing tiles, tile waterproofing). Starship might actually deliver payload to orbit on flight 11.

They mentioned in the stream they were intentionally stressing the ship on reentry.

But yes, “rapid reusability” is a ways off. I expect they’ll be spending weeks inspecting and repairing ship and booster before reflight for a few years, but they’ll drive it down over time.

TBD how “rapid” the reusability ends up being in the end.

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