World’s first crewed liquid hydrogen plane takes off::undefined

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7 points
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LEL for Hydrogen: 4.0 (% in air)
UEL is 75 %
This is the most severe (wide range) for any fuel.
LEL and UEL Explained (Explosive Gas) - Projectmaterials

This is on top to hydrogen enbrittlement and low temperature enbrittlement of metals.

Good luck with the insurance fees for commercial flights.

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4 points

Aviation is the one field, where burning some form of carbohydrate is actually the only viable option. Batteries may be an option for short flights, but I don’t see any solution for long haul flights.

Whether the fuel ends up being (synthetic) kerosene or some plant oil stuff doesn’t really matter, the turbine isn’t going anywhere.

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2 points

Yeah getting aircraft onto renewable energy is probably the lowest priority, if everything else was renewable it wouldn’t even matter if they were never renewable.

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1 point

I agree…
( except for a small typo : it’s carbohydride or hydrocarbon )

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6 points

no no, the planes need a big plate of spaghetti before long haul journeys

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