(Repost from: http://conservationdrones.org/2013/10/12/drone-crash/)
People often ask how often we crash our drones. It really isn't that often nowadays. But when it happens, a crash is caused by human error 99% of the time. During our trip to Panama, we had two crashes because we set 'receiver failsafe' to 'Fly-By-Wire' (FBW) by mistake. As soon as the drone flew out of radio range, the autopilot switched out of 'Auto-mission' mode into 'FBW' mode. This video clip shows the last few seconds of a truly unmanned and mission-less drone as it drifted over Barro Colorado Island and into the Panama Canal. No drone was harmed in the making of this video. It was safely retrieved and had only water damage to the autopilot and some electronics.