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[funtimefrankie]

Whats the difference between digital servos and normal ones?

Are they interchangeable, on say a 40mhz  FM Futaba system.
Any advantages in them?
Ta
Frank

[andrewh]

Frank,

Short answer:  Yes, completely interchangeable

Longer answer needs us to know why you ask
They do more power per size, more cost per size and consume more amps (sometimes)
They also have some habits which need to be understood - nothing bad but with a computer radio they can be persuaded to exceed the travel of things they drive - especially interesting on yacht sheets
andrew

[Lagaffe]

Digital servos are absolutly no use on boats (except reducing battery life!). You only need them when you must have a very quick action, like in 3 D helis.

[essex2visuvesi]

Digital servos are absolutly no use on boats (except reducing battery life!). You only need them when you must have a very quick action, like in 3 D helis.

unless you have a superfast hydro or something similar

[funtimefrankie]

I went with ordinary servos....thanks for the comments

[Lagaffe]

Usual servo = 0.2s / 60° (or less)
digital servo = 0,1s /60° (or more)....

With a superfast boat you will never use more than 10-15°.
So the maximum response time difference would be about 0.02 s
You must really have a good finger response time !

With helis, this makes a difference because all servos must have the same response time whatever the effort. And cyclic servos do not have the same effort.
Another difference: a digital servo gives the same effort all along the rotation.
On the other hand the effort on a normal servo will decrease when reaching the good position.