{% embed url="https://www.youtube.com/watch?v=W0B0Lixy098" %} Formation flight: quadcopter with Ardupilot UAV (autopilot following waypoints automatically) {% endembed %}
{% embed url="https://www.youtube.com/watch?v=YHBRuXoNCLk" %} My €1500 quadcopter runs out of battery ABOVE the sea!! Can I still save it? {% endembed %}