Aerovel’s drone flies for 32 consecutive hours — a new record — with gas to spare
October 17, 2017
https://www.bizjournals.com/seattle/news/2017/10/16/aerovels-drone-flies-flexrotor-bingen-washington.html
October 17, 2017
https://www.bizjournals.com/seattle/news/2017/10/16/aerovels-drone-flies-flexrotor-bingen-washington.html