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eunoia | 1 year ago

> go again the same day.

That seems like a stretch. What is the actual turnaround time for Starship? fwiw the Shuttle had a lot of lofty promises of reusability that were technically true as long as you didn't consider how long the turnaround time was.

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gridspy|1 year ago

The shuttle boosters required rebuilding / refueling (which is solid rocket goop) and the fuel tank was completely lost and required rebuilding. The head shield tiles were extremely fragile on the shuttle.

It was never a fully reusable design, just more reusable than before.

SpaceX plans to have no parts that are lost each flight and is working to make the tiles mostly standardized and less sensitive to faults.

trompetenaccoun|1 year ago

Are they going to replace all the tiles before it can relaunch? And what about the engine nozzles? They must be taking quite the beating.

No doubt SpaceX has very smart people working on this and I'm not an expert in material science, but I just find it hard to believe that same day turnaround could be possible. If true, that would really make us a confirmed space faring civilization. We could actually start colonizing Mars.

ceejayoz|1 year ago

Some of SpaceX's first stages are getting close to the individual Shuttles' launch counts, with substantially less turnaround time and cost than Shuttle ever had.

Starship has work to do, but it's hard to argue they're not at least on the right path.

marcusverus|1 year ago

SpaceX was able to re-fly a Falcon 9 in 3 weeks, and it was reported[0] that the refurb process only took 9 days. So they're well on their way.

It's also worth noting that Booster (the first stage), Starship (the second stage) and Raptor (the rocket engine) were all designed with the benefit of the above experience and with the goal of same-day reuse in mind. They know where all of the refurb time went and where the bottlenecks are.

I have no doubt that they can reduce the turnaround further, but the goal of same-day re-flight does seem mighty ambitious.

[0] https://www.teslarati.com/spacex-falcon-9-new-booster-turnar...

cwillu|1 year ago

Also, less cost in life.

soperj|1 year ago

With the Falcon 9 they're already at over 100 launches this year. It's multiple rockets, but the turn around is pretty quick and getting quicker every year. They're designing starship from the start with same day turnaround in mind. I wouldn't bet against it I guess.

LorenDB|1 year ago

For the Super Heavy booster, SpaceX is targeting a <1hr turnaround time. For the ship, it gets a bit more complex. Ships have to make complete orbits before returning, and generally they have to be loaded with cargo as well. Tanker Starships for lunar/Mars missions will probably have pretty quick turnaround given that fuel can be loaded on the pad; other ships will have significantly longer turnarounds.

modeless|1 year ago

It's a good question. The hurdle to clear for same-day reuse will be the heat shield. SpaceX hasn't yet demonstrated that Starship can reenter the atmosphere and remain fully intact. Doing it while sustaining near zero wear on the heat shield will be even harder. But I think it is not impossible, and I don't know of any other obvious blockers for same day reuse.

soperj|1 year ago

They'll likely reuse the booster on the same day well before the starship portion. No heat shield on the booster. Some starships will likely stay in space for a long time before returning.

WalterBright|1 year ago

Zero wear is not necessary. The tiles can be thicker than the minimum, and be reusable until they wear down to the minimum. Like the brake pads on your car.

BurningFrog|1 year ago

It's certainly looked fully intact when reaching ground.

When they manage to do the intended landing it should be pretty unharmed, but I'm sure it will take a while before same-day reuse is attempted.

YetAnotherNick|1 year ago

Even if they can reuse the booster, it would be huge.

fragmede|1 year ago

The previous flight was October 13, 2024, so while I can't speak to every day, one month turnaround is a reality.

soperj|1 year ago

It's a completely different booster and ship that's flying.