Airframes 9

Hover Will have the aircraft hover in place at its current altitude Pros Allows aircraft to remain safe for a period of time while attempting to regain communication Good in areas with many obstacles Cons Runs the risk that batteries run out before recovery Return to Home Flight Controller will use sensors and recorded "home" to automatically fly aircraft back home and land Pros Good in areas with few obstacles Brings aircraft home safely if it works properly Less risk of running out of battery life Cons Highly Dependant on sensors and GPS Must have recorded HOME correctly pre-flight Must understand the flight path it will take

Safe operation relies on ensuring you have as much redundancy as possible: Engines Power sources GPS Receivers Compasses Understand what redundant systems are on the aircraft Know how they work Set them up properly Test that they work