This Governor is designed to maintain a constant rotor head rpm. This is accomplished with an electronic
sensor mounted on the heli, and a magnet that you install on the bottom
of the cooling fan.

INCLUDES: One GV-1 control amp with LCD display One sensor unit Two mounting brackets,1 for 30-size, and 1 for 60-size One small plastic screwdriver for adjusting the unit Two small magnets, (one used as a counter-balance for the fan)

SPECS: Control resolution: 0.1 Hertz Accuracy: 1% Control response: 20mS (milliseconds) Control range: 1000-2100 rpm (rotor head speed) Mixture curve: 9 different points to set Operating voltage: DC 3.8-6.0 volts Current drain: 40 mA at 4.8 volts COMMENTS: YOU MUST ENTER THE GEAR RATIO OF YOUR HELI INTO THE AMP, IF IT ISN'T IN THE MANUAL, DIVIDE THE NUMBER OF TEETH ON THE MAIN GEAR BY THE PINION TEETH. Nexus standard and deluxe: 9.8 : 1 (also Concept 30s) Nexus 46: 9.5 : 1 Legato: 7.8 : 1 Concept 60 and SR: 9.3 : 1 Sensor 7.5 x 10 x 16mm Control amp 56.5 x 30.5 x 16mm Weight is 38 grams

This governor maintains a constant rotor head speed by monitoring the cooling fan speed and adjusting the throttle on the heli.