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wedontlikespaces t1_iydisko wrote

Reply to comment by Enchydrogen in Rolls-Royce successfully tests hydrogen-powered jet engine by Majnum

Unless they can change the laws of physics I don't see how they going to get the energy density of hydrogen they need it for it to power a plane.

Not without taking up virtually all the space in the aircraft with fuel tanks.

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Vickrin t1_iyf4kgg wrote

I don't get how people aren't seeing this.

Any engineer could do the maths on this in an afternoon and see that hydrogen is not a viable fuel for aviation.

It requires too much weight to keep it stable.

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