SpaceX (Vol. 2)
Author
Discussion

loudlashadjuster

6,442 posts

214 months

Thursday 30th July
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Talksteer said:
Hill92 said:
98elise said:
LivLL said:
Mmm, anyone fancy some international salvage. Presumably it's fair game for anyone to get out there and take the floating remains for themselves?
You would have to find it first. The sea is very big, and the rocket relatively small.
SpaceX vessel tracking Starship 40: https://www.marinetraffic.com/en/ais/home/shipid:4...



Can also track it with commercial Space Synthetic Aperture Radar imagery: https://spacefromspace.com/spaceport-images/spacex...
This is why I'm a little surprised that they have just been blowing them up and letting them go to the bottom. As Jeff B demonstrated it's perfectly possible to locate and haul up rocket engines from the bottom of the ocean. I would assume that is precisely what China will do. All of the ones that landed intact could have been hauled abord a vessel.
They haven't been blowing them up intentionally, they tend to crumple when impacting the surface and any lingering propellant kinda arranges the rest...

And I think you underestimate just how deep some bits of the ocean are!

ChatGPT said:
Based on the location of SpaceX's Indian Ocean landing corridor used for recent Starship flights, the seabed in that region is typically 4,000 to 6,000 metres deep (about 2.5 to 3.7 miles). The central eastern Indian Ocean contains extensive abyssal plains in this depth range. This means that if Ship 40 eventually sank after floating, it would likely come to rest several kilometres below the surface.
It really wouldn't be cost effective to recover pretty much anything at those depths.

AJLintern

4,389 posts

293 months

Thursday 30th July
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How deep is the Indian ocean where Starship 'lands' ? Maybe the cost of trying to recover something from that depth is more challenging and expensive than any perceived benefit that might be gained from inspecting the remains? scratchchin


Edited to add: Yeah, what he said ^^^ biggrin (great minds etc...)

Talksteer

5,774 posts

263 months

Thursday 30th July
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loudlashadjuster said:
It really wouldn't be cost effective to recover pretty much anything at those depths.
You are kidding, it costs about a million to hire a support ship and ROV for a few months.

Lifting a mostly intact Raptor from the seabed would save years of engine development and tens to hundreds millions of design effort and materials development.

Leithen

14,042 posts

297 months

Thursday 30th July
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It would be a tad worrying if a North Korean Vessel with salvage capability happened to be in the area.

Someone has this covered, don’t they?

AJLintern

4,389 posts

293 months

Thursday 30th July
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Is it really that top secret though? I'm sure China has plenty of rocket scientist already copying anything that's worthwhile.

dukeboy749r

3,875 posts

240 months

Thursday 30th July
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Well, since China has recently launched and then landed its own rocket, I’m not sure that they would be particularly interested.

p1stonhead

30,318 posts

197 months

Thursday 30th July
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dukeboy749r said:
Well, since China has recently launched and then landed its own rocket, I m not sure that they would be particularly interested.
And their version gives a lot more room for error as the cables can move quickly for the catch not the booster itself. Seems a much better solution.

Buzz84

1,729 posts

179 months

Thursday 30th July
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They recover sections of the booster so I am sure if they are able to they will recover parts of starship as well?




LivLL

12,647 posts

227 months

Thursday 30th July
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Buzz84 said:
They recover sections of the booster so I am sure if they are able to they will recover parts of starship as well?



From what I've been reading they'll probably just monitor the ship and let it sink and they don't have a means to recover it from the sea on location currently (the vessel that is there can't do it) and they intend to catch the next ship in less than a month which means it'll already be where they want it and it won't need recovery, just trucking to an inspection bay.

Talksteer

5,774 posts

263 months

Friday 31st July
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dukeboy749r said:
Well, since China has recently launched and then landed its own rocket, I m not sure that they would be particularly interested.
Landing a booster can be achieved with very modest performance engines.

The Raptor is a full flow staged combustion engine, that is significantly beyond what the Chinese have done.

When moving to a new architecture you learn a lot by trial and error and getting someone’s working engine means you avoid many of their errors.

Rockets are not a mature as jet engines so we aren’t in the same position where 1% performance difference equals a non commercial product. That plus continuous development is why the Chinese haven’t cracked jet engines yet, they could make an adequate turbofan today, it just wouldn’t be competitive at the current margins.

They will probably stand a chance of entering when we see the next major architectural shakeup of aircraft much as how they entered the global car markets when cars went electric.

dukeboy749r

3,875 posts

240 months

Friday 31st July
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Fair points. beer

Pincher

10,557 posts

247 months

Wednesday 5th August
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Surprised that there is nothing about a big chunk of a Falcon 9 rocket hitting the moon this morning?

Edited by Pincher on Wednesday 5th August 11:08

loudlashadjuster

6,442 posts

214 months

Wednesday 5th August
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I don't think the moon cares

lost in espace

6,607 posts

237 months

Wednesday 5th August
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Share price up 9% last night, Musk laughing at short sellers on X.

Pincher

10,557 posts

247 months

Wednesday 5th August
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loudlashadjuster said:
I don't think the moon cares
Maybe not but it's not really a regular occurrence is it?

Equivalent to 3 tonnes of TNT exploding, supposedly.

RacerMike

4,943 posts

241 months

Wednesday 5th August
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lost in espace said:
Share price up 9% last night, Musk laughing at short sellers on X.
But down 11% this morning.

This is also despite better than predicted earnings in yesterdays earnings call. The original investors can sell from tomorrow, so bascially the whole retail market has no interest in buying due to the likely mass sell off of shares by early investors.

RacerMike

4,943 posts

241 months

Wednesday 5th August
quotequote all
Pincher said:
loudlashadjuster said:
I don't think the moon cares
Maybe not but it's not really a regular occurrence is it?

Equivalent to 3 tonnes of TNT exploding, supposedly.
Apparently quite useful from a science perspective as they knew the exact mass and speed which is something not possible with asteroids. So they can use it to improve models on impacts based on the resultant crater.

Eric Mc

125,712 posts

295 months

Wednesday 5th August
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The moon has been smacked many times by tons of man made hardware since the late 1950s.

During the Apollo missions, a number of the upper stages of the Saturn V (the SIVB stage) were deliberately aimed at the moon in order to obtain some scientific data on lunar material etc.

The top stage of a Falcon 9 is smaller than an SIVB.

JoshSm

5,110 posts

67 months

Wednesday 5th August
quotequote all
RacerMike said:
lost in espace said:
Share price up 9% last night, Musk laughing at short sellers on X.
But down 11% this morning.

This is also despite better than predicted earnings in yesterdays earnings call. The original investors can sell from tomorrow, so bascially the whole retail market has no interest in buying due to the likely mass sell off of shares by early investors.
In utterly unrelated news (and in a pattern that definitely doesn't happen regularly at a certain someone's other company) someone blew $20 million on $330 SPCX calls expiring Friday before that price rise.

It's weird how often someone with money to burn creates a gamma squeeze on some stocks.