I spent all morning retrofitting IOS, reinstalling apps and recovering flight records. Then I took her up for some test flights, and for the second time in two weeks I encountered a swarm of bees - this time it was a massive swarm of huge drones. Looking at the video I flew into the swarm at around 200 feet, and they followed me down right to the ground, and only dispersed when I powered down. Made a real mess of my quad, which made a bigger mess of the drones.... It is the middle of Spring here, so lots of bees about. Any entomologist want to venture why bees should be so attracted by the quads?