For those who want to do the math. An A380 takes approx 253 tons of Jet a-1, this produces 11.3 kWh/Kg. As the aicraft fly's this fuel is burnt so becomes lighter and more efficient. Battery's retain their weight. Not sure of the limitations of top speed of propellors, assuming that is how elec propulsion is delivered? if this results in a lower max cruise speed then more fuel will be needed. I'm sure someone will be able to give more accurate predictions, but i still stick to the idea we will never fly as we do today commercially with elec but except for some very limited small private operations and limited short hop commercials it will not be the norm.
Last edited by PA28181; 16th Feb 2018 at 11:49.