Dragon72-1 Dragon Ornithopter : 2nd Flight Test

Dragon72-1 Dragon Ornithopter : 2nd Flight Test Wing 20mm Gear Center-Arm point Stainless steel Shaft (11g up) Temporary Arm was broken . Then I made powered Arm. Width 280cm Length 178cm Weight Now 691g battery Lipo1000mAh3cell 84g Total flight weight 813g .