Why Digital Servo:
Electronic helicopters are widespread in this era and more accurate control is needed. Therefore, standard servos with logical chip are no longer suitable. A lot of servos of different volume and weight come out in today’s model market. Though they have higher rotational speeds and torque, they don’t have those characteristics of digital servos’:
Higher resolution
The tightest dead band
Accurate positioning
Faster control response
Quicker acceleration
Constant torque throughout the servos travel
Increased holding power when stationary