Etna
Member
What are you talking about? All the airplanes I have flown are designed to land with a full tank.The main problem with batteries is, landing weight is the same as take-off weight.
Which means EV planes should weigh close to the weight of an ICE plane with empty tanks. I am not even sure today we are anywhere close to that in terms of gravimetric density for even the highest energy density LiOn battery with Co & Ni.
Or look up any regional turboprop specifications, maximum landing weight is generally very close to maximum takeoff weight. As in 95% full tank.