this post was submitted on 16 Jan 2025
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Image link from NSF forum.

Originally leaked on X (I think), then posted to the SpaceXLounge subreddit by u/mehelponow

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[–] burble@lemmy.dbzer0.com 10 points 1 year ago (2 children)

Well that isn't fully and rapidly reusable. Goddamn. I was starting to feel better about booster reuse soon. Maybe that's still the case, but, man, what the hell is this.

[–] CaffeinatedMoth@lemm.ee 7 points 1 year ago (2 children)

Wasn't this flight the one where SpaceX intentionally removed a bunch of heat shield tiles?

[–] Morphit@feddit.uk 6 points 1 year ago* (last edited 1 year ago)

I think this is all coming from the flap hinges. The hotspots on the leeward part are sparks from the sides. They fall that direction since the re-entry is applying some drag.

The intentionally missing tiles were just on the engine skirt section IIRC. So this isn't necessarily a problem with the main heat shield. The V2 flap design might mitigate it completely. We can't really say much from just one (alleged) image.

Edit: The IFT7 stream stated SN33 has missing tiles spread over the entire heat shield this time.

Edit2: Not going to see anything from IFT7 re-entry.

Yes. Doesn't seem to working out if this picture is what OP claims. But if that's the case, I don't understand why they removed even more tiles on the Flight 7 ship.

[–] pennomi@lemmy.world 7 points 1 year ago (1 children)

Booster reuse vs ship reuse is a completely different beast. I am not sure it’s ever going to be viable to reuse the ship economically.

[–] poVoq@slrpnk.net 7 points 1 year ago (2 children)

Yeah, the Spaceshuttle was a cautionary tale and the Ship doesn't seem to have a fundamentally different approach. But lets see how things will develop.

[–] Onomatopoeia@lemmy.cafe 8 points 1 year ago* (last edited 1 year ago) (1 children)

I don't think the shuttle is a good example at all.

The reusability was just marketing shtick so a large enough vehicle could be built to launch multiple Hubble-chassis Keyhole satellites for the NSA. (It's probably more accurate to say the Hubble is built on a Keyhole satellite chassis).

[–] poVoq@slrpnk.net 5 points 1 year ago (1 children)

Yet the technology it used for the heat shield was very similar to what SpaceX is trying to do with the Ship.

[–] pennomi@lemmy.world 3 points 1 year ago (1 children)

I’ve heard whispers that they are trying a new transpirational heat shield design since the tiles aren’t working out so well.

[–] poVoq@slrpnk.net 4 points 1 year ago

That would be pretty cool indeed.

[–] psud@aussie.zone 6 points 1 year ago (1 children)

Shuttle was aluminium beneath the thermal tiles, so damage to the tiles was catastrophic. The expectation is Starship will be okay with a few tiles out, partly because steel is much more capable than aluminium, and partly because they have backup thermal protection

[–] poVoq@slrpnk.net 2 points 1 year ago (1 children)

Sure, but there it a huge chasm between "catastrophic failure" and "looks good to go again next week", and even minor structural damage will prevent rapid resuse.

[–] psud@aussie.zone 3 points 1 year ago (1 children)

I'd much rather be on a spacecraft that wore out too soon than one that catastrophically failed

[–] poVoq@slrpnk.net 1 points 1 year ago

Sure, but the rare catastrophic failure issue is not why the Spaceshuttle is widely considered an engineering failure. The real issue with it was that the re-usability of it turned out to be a huge money sink. Spaceship might face a similar fate with those heat-tiles.