Assuming a future where LENR is solved, understood, and controllable, what would be the engineering hurdles involved in powering a jet airplane using on-demand H2 from electrolysis?
Water could potentially fuel the LENR reactor and provide the H2 for the jet engines. I assume a battery would be included to provide quick throttle response, and the LENR reactor would charge the battery. The reactor would have a mechanism of its own to ramp up/down the power to the battery to keep the battery from getting depleted/overcharged.
To convert heat to electricity, I assume the use of either a solid-state converter or maybe a stirling-type heat engine, I suppose it depends a lot on how much heat we can generate, so let's just assume a best case scenario: That we can generate as much heat as we want.