Futaba S-A501 - Coreless Digital Airplane Servo - 16.8kg/cm
Specs:
Type: Coreless, digital, S.Bus2, HV airplane servo
Size: 40x20x36.8mm
Weight: 62g
Rated Voltage: 6-7.4V
Operating Voltage: 4.8-8.4V
Torque @ 6.6V: 15kg/cm
Torque @ 7.4V: 18.8kg/cm
Speed @ 6.6V: 0.12s/60°
Speed @ 7.4V: 0.11s/60°
Splines: 25T