Re: @45RPM
What exactly is the next step? The limitations in all electric aircraft designs are the same: battery technology isn't there yet. Unless RR plans to increase the energy density of batteries approximately 10x in the next few years there's nothing for them to innovate or prove here. We know electric stuff can fly, you can hardly go to a park without seeing evidence of that today, it just can't fly for very long and it can't carry much outside its batteries.
Biting the hand that feeds IT
