There are numerous reasons for investing more in electric flight research. Aside from the obvious environmental benefits, the technology necessary is much simpler than traditionally powered aircraft. Getting beyond the two-seat, training-size aircraft, however, is the major challenge. Electric flight will only take off if better batteries can be developed. “There are some interesting prototypes in the sort of ‘home built’ one or two pilot short-range area – not to mention a whole range of unmanned airplanes with longer endurance that use solar on the wings – but the issue for all of them is that the technology isn’t yet scalable to larger size aircrafts,” says Prof R John Hansman, director at the MIT International Center for Air Transportation. Read more below.
Electric Flight Waiting on Better Batteries (Irish Times)