Quadrocopter failsafe algorithm: recovery after propeller loss

Quadrocopter failsafe algorithm -- Institute for Dynamic Systems and Control (IDSC), ETH Zurich, Switzerland - == UPDATE == Please see this video () for a demonstration of the flight algorithm without the motion capture system. The video shows an automatic failsafe algorithm that allows a quadrocopter to gracefully cope with the loss of a propeller. The propeller was mounted without a nut, and thus eventually vibrates itself loose. The failure is detect