There is a fundamental advantage that you guys have not mentioned in laymans terms and that is holding power. Here lies the real applied advantage of digitals.

For Example, and this is just a basic non technical explaination. With an analog servo, if you pull back on the elevator to full up elevator an analog servo sees a signal to move. It puts out a given amount of current and the shaft rotates. It does not care how much or how many degrees the servo shaft rotates or what the deflection of the servo arm is, its just deals out a certain amount of "power" basis your stick input. So if you are flying and the wind pushes back on the surface the current to the servo does not change and the servo gets "pushed back". It may rotate 30 degrees on the ground and only 29, or 28 or 25 degrees depending on headwind and how fast you are going. A digital servo in the same situation will increase power to hold the position of the shaft and thus the servo arm which means the control surface does not get pushed back.

With a digital whatever you ask for it gives you and will increase power (or whatever) to hold the servo shaft/arm in the place you told it to go with the stick. I guess you could sort of say that an analog signal thinks in term of power delivered to the servo and the digital actually thinks in terms of % of potential rotation of the shaft. Thats very laymen so dont cream me for it.


Not a great explanation since I am not an electrical enginner, but that is the jist of it.