Kirp123 comments on Behold, the people who think AI is going to replace your job

Behold, the people who think AI is going to replace your job (sh.itjust.works)

submitted 8 months ago by threelonmusketeers@sh.itjust.works to c/spaceflightmemes@sh.itjust.works

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[–] Kirp123@lemmy.world 7 points 8 months ago* (5 children)

Damn, didn't realize rockets ran on methane. Just like my stove.

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[–] Alcoholicorn@mander.xyz 13 points 8 months ago

Yes a lot of modern engines run on methane. It doesn't have to be as cold as H2 and its much more volume-dense.

Combustion is much less complicated than with kerosene and other big hydrocarbons.

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[–] mkwt@lemmy.world 3 points 8 months ago (3 children)

Saturn V first stage ran RP-1, a kerosene fuel like Jet-A or JP8.

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[–] Tar_alcaran@sh.itjust.works 4 points 8 months ago (2 children)

Yep, they went to the moon on fuel that could also run a truck (if you don't particularly care about still running it next week)

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[–] threelonmusketeers@sh.itjust.works [S] 3 points 8 months ago (1 child)

if you don't particularly care about still running it next week

Wouldn't RP-1 burn cleaner than run-of-the-mill diesel?

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[–] Tar_alcaran@sh.itjust.works 4 points 8 months ago* (last edited 8 months ago)

Sure, the burning part isn't the problem.

Diesel has small amounts of lubricants, and those are very much needed for all the tiny little moving parts in fuel injectors and probably even in the engine itself. RP-1 doesn't have those.

Also, I know jet fuel will absolutely destroy just about every rubber not specifically designed for it, and that may apply to RP-1 as well.

Also, starting your rocket fuel car in winter is probably going to be a real chore, since the vaporization point is much higher, and modern cars don't come with preheaters that can handle that anymore (thanks to those fuel injectors).

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