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404 points voxleone | 1 comments | | HN request time: 0.272s | source
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bhouston ◴[] No.45655419[source]
Is this realistic? Doesn't the development timelines for a new large rocket stretch into more than a decade? Unless someone else had one under development...

Could this just be a pressure tactic on SpaceX?

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ACCount37 ◴[] No.45655845[source]
Blue Origin is explicitly named in Duffy's statement. And if SpaceX's Starship HLS catches enough delays, they can slide into Blue Origin's Blue Moon HLS timeline - which is now being developed for Artemis 5, in 2030.

On top of working on a HLS lander, Blue Origin has a pretty large rocket developed already - New Glenn. They just don't have the reusability or the launch cadence, and their HLS needs at least two launches. So far, New Glenn has only ever flown once, with the first stage recovery attempt being unsuccessful. But they may get it into a good shape in time.

I do think that Artemis 3, currently stated for 2027, will be eventually delayed to ~2030, for many reasons. But I wouldn't trust Blue Origin to deliver before SpaceX even if they started the development at the same exact time, and they didn't. SpaceX is, by aerospace standards, a lean and mean company. SpaceX sets unhinged hyper-aggressive "if we lived in a perfect world" timelines, and delivers late. Blue Origin sets reasonable aerospace timelines, and still delivers late.

Blue Moon HLS is considerably less complex than Starship HLS, but it has a lot of the same milestones in front of it - including in-orbit propellant storage and fuel transfers from one vehicle to another. And currently, they certainly don't seem to be ahead of where SpaceX is now with Starship.

Other than Blue Origin and SpaceX? I just don't see anyone being able to squeeze out a HLS candndate in time for 2030. Who else is there in the space, with anywhere near the expertise? Firefly? Boeing?

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floating-io ◴[] No.45656020[source]
> Blue Moon HLS is considerably less complex than Starship HLS

That's the one thing in your comment I disagree with. Starship-based HLS has basically one base vehicle, modified into three variants (tanker, depot, and the lander itself). Refueling is done in LEO.

Blue Origin's HLS has three completely unique vehicles with no commonality (New Glenn, Transporter, and the lander), and refuels in multiple orbits, one of which is NRHO, which is likely to be far more challenging. And they're doing it with hydrogen.

Blue Origin's Mk1 cargo lander is simpler; their HLS architecture is not.

JMHO.

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mortarion ◴[] No.45667719[source]
> Refueling is done in LEO.

Look up how many refueling launches are required and you'll see the problem, especially because no matter if Elon says so, the upper stage will never be reusable, even if caught.

Every moon mission will require that they pre-build a HLS and probably 15 full stacks.

Ridiculous.

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1. floating-io ◴[] No.45670733[source]
You're welcome to believe that. Visible progress to date suggests otherwise to me; I pretty much ignore what Elon says as much as possible. Besides, however ridiculous, 15 full stacks would still be cheaper than a single SLS launch in all likelihood.

Even if I'm wrong, though, it wouldn't invalidate the point I'm making in this thread: BO's Mk2 has the exact same issues in a more complex architecture.