NASA Unveils Plans for Electric-Powered Plane
http://www.nytimes.com/2016/06/18/science/nasa-electric-plane-x57.html?_r=0
Interesting, but I'm not particularly impressed...
"The design does not overcome the shortcomings of electric propulsion. Its 800 pounds of batteries will replace the rear two passenger seats, and the seat next to the pilot will be replaced with instrumentation, leaving space for only the pilot and no passengers. It can stay aloft for only about one hour."
For comparison, two obese portly burly pax in a C-172 and an hour's fue