The S20 have been well tune for Eagle Hero since maiden flight at 2015. Thousands of success mission proved the reliabilities around the market. All PID being stored inside the S20. Just plug and play then the Eagle Hero ready to go. S20 is the best options for the flight controller of Eagle Hero VTOL.
The S2 series, flight control and navigation system, is designed for an aircraft with miniature and small size electric conventional fixed wing, vertical take off and landing fixed wing (VTOL), also tilt rotor layout. It is internally integrated with flight control computer, micro-integrated navigation system (GPS/MINS), weight is only 85g.