Aerovel’s Unmanned Flexrotor Sets VTOL Endurance Record
October 16, 2017
http://www.auvsi.org/industry-news/aerovels-unmanned-flexrotor-sets-vtol-endurance-record
October 16, 2017
http://www.auvsi.org/industry-news/aerovels-unmanned-flexrotor-sets-vtol-endurance-record