Re: Electric planes?
As far as I can see jet fuel retains the power supply characteristics until the tanks are dry.
That's completely wrong. As fuel level goes down, you're spending more energy pumping it to the engines, dealing with vapor, and running risks of stalls due to the fuel not being over the pump inlet while the jet is turning, and there are dangers of inaccurate fuel gauges, etc.
Battery-electric vehicles are vastly superior on that front. Li-Ion batteries do maintain a very, very flat power curve until they are deeply discharged, and engineers prevent deep discharge to extend battery life, anyhow. At the low discharge rates used in vehicles, they are extremely consistent and predictable. I would NEVER consider driving my petrol car down to 5% of a tank of fuel, but with a battery electric car, it's quite safe to do and not uncommon.
Biting the hand that feeds IT
