Quote from: K-Dog on Apr 27, 2024, 11:14 PM
Well, by weight you get almost triple the KWh per kg of H (34) than for gas (12). Weight is much more important than volume for flying.
By volume, for every liter of hydrogen (2.5 kWh) you get slightly less than quadruple the kWh in a liter of gas (9kWh).
A liter of gas weighs .74 kg. 4.5X more, 1L H weighs .16 kg abou
So you probably need about 2X as much room for your fuel tanks, but they'll weigh about half as much for equivalent energy. That's not exact, I'm ballparking it. You can work out the exact numbers if you like.
According to Google, most jets have their fuel tanks in the wings, but the tanks don't take up the whole wing. I suspect you could get similar range with tanks added in the luggage compartment, and you would need less fuel because the total weight of the aircraft would be less.
RE