Small E-Help super batteries to search a big range for lift
Electric flight some far distance from Moseidmoen to Drivenes
north in Vennesla to search for weak thermic lift on a over-developed, zero wind
and weak lift day. Battery is a 4 kg mass 0.5 kWh Lithium Polymer 65C high tech
stuff. Capable of keeping a hang glider airborne for 15-20 minutes.