*What exactly is the difference between an analog servo and a digital servo as far as performance?
* I see that you can program some of these digital ones...program them to do what? lol..I always thought a servo was a servo.
*Do you need a special RX to use digital servos?
*Is the difference in price really worth it?

-I am looking for servos for my Hyperion Sniper X II to start practicing hovering and more 3D, which type do you all recommend? (will be using futaba 6EX Xmitter till my Spektrum DX6i comes in... if that matters)

Any questions answered would be of great help!!! Thanks in advance!!!
-Kevin

Hi Kevin,

The main differences are the centering power and the ability to program the servo when you are using multiples on the one control surface on larger models. The centering power equals accuracy.

Cheers,

Colin

Digital typical equals speed and power with more effecient centering.


May I offer a tidbit as well....

I would not go from the 6ex to another 6 channel radio. at least buy a 7ch that wont disappoint with other helicopters...

They work with just about any receiver, the receiver really doesn't know if the servo is digital or not nor does it care.

The reason they center and hold better is because they develop full torque almost instantly where an analog servo will be nearly to its stopping point before the motor reaches full torque.

Lastly the programming. This comes in handy because you can reverse them, set the end points, set the center and even set the speed all without a fancy radio. Centering is nice as you can get a very precise setup without dialing up a bunch of sub-trim. Where a programmer comes into its own is when you have a large plane with multiple servos per control surface, you can exactly match full throws, center, and speed to keep the control surface from binding during its throw.

If you're going to do 3D they are nice. On a Cub they wouldn't make much difference.

Here's the link I was looking for.

Enjoy!

http://www.futabarc.com/servos/digitalservos.pdf