On Tuesday, April 4, 2017 at 1:40:08 PM UTC-7, Andrew Ainslie wrote:
It's not hybrid, it's pure electric.

http://www.flyingmag.com/extra-unveils-electric-330le

https://arstechnica.com/cars/2016/12...airplane-ever/

Amazing little plane!!

Power in an electric plane was solved long ago. It's duration that needs work - they mention having 15 minutes duration. That means it could aerotow maybe 6 gliders (and I wouldn't want to be the sixth...), then have to get recharged. No mention of the recharge time.