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https://www.motortrend.com/news/tesla-roadster-thrust-system...

> You can think of the COPV like the fuel tank in a compressed natural gas (CNG)- or liquid propane gas (LPG)-powered vehicle, except the nitrogen mixture in the COPV is stored at a much higher pressure, up to 10,000 psi, similar to the pressures in modern hydrogen fuel-cell vehicles.

LPG cars have somewhere between 100 and 300 psi.

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LPG explosions are real combustion due to tank rupture (often due to installation damage or rust). A nitrogen COPV can not rupture (that's why the CO in COPV is there) but it can leak. And that COPV, when it leaks, will be a rocket. But not an explosion.

10,000 PSI? That is beyond absurd. I can not imagine what alloy and how wrapped that pressure vessel is... Or what type of crazy pump is recharging it!

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> A nitrogen COPV can not rupture (that's why the CO in COPV is there) but it can leak.

They'll happily burst (https://www.youtube.com/watch?v=YJ-__PlU4gM) and blow up your vehicle (https://www.youtube.com/watch?v=71AwkBt3_ts).

https://www.space.com/space-exploration/launches-spacecraft/...

"'Initial analysis indicates the potential failure of a pressurized tank known as a COPV, or composite overwrapped pressure vessel, containing gaseous nitrogen in Starship's nosecone area, but the full data review is ongoing,' the company wrote in an update on Thursday (June 19)."

> LPG explosions are real combustion due to tank rupture…

They're mostly designed to vent (https://en.wikipedia.org/wiki/Rupture_disc) to prevent a BLEVE. Big fire, big mess, but without oxidizer in the tank and much lower pressures, relatively safe by comparison. https://www.youtube.com/watch?v=JQDyNjCNxVY

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How do gas pressures in the COPV in the Roadster compare to pressures in lost rockets?
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I'm not able to find solid numbers on that, but given the shared heritage (I presume those gas thrusters come straight from SpaceX) and premium in a space vehicle for payload space, and the fact that SpaceX lost four vehicles to the things, I suspect similarly quite high.
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My assumption was that pressures would be lower to help with the longevity of the air chamber, versus a more “disposable” nature of rocket equipment. I am assuming they are replaced between launches.
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And the P in LPG stands for Probably not flammable.
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Tank pressures are of different magnitudes. With LPG it's only for storage, here it's for thrust.
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