reverse servo

[Ron B 1948]

what is the difference between a regular servo and a reverse servo and are the throws the same?

[RRHandy]

Throws are the same but the direction is counter clockwise.

[xviper]

The main use for reversed servos is for things that are run in tandem, like flaps or dual elevators where a "Y" is used. These are usually mounted in "mirror image". For something like ailerons where they are connected with a "Y", you want one aileron to go UP while the other goes down. Flaps, on the other hand, while still mounted in mirror image, need to both go UP (and DOWN) together while being "Y'd" together. That's when you need one of them reversed. The other option is to use a servo reverser on one of them and still be able to "Y" them together.
If you have enough channels that you can run each one separately (without a Y), then you don't need a reversed servo since you can reverse any one you need to or like to. In this way, you can do sub-trims individually and other neat programming.

[Boots Whirlygig]

I can see no need for reverse direction servos if you scratch build. Why not just use a regular direction servo mounted upside down for flaps, since they are usually mounted flat. Why mount them mirror image? Because it's more aesthetically pleasing? I don't think being able to see the black servos is aesthetically pleasing! They could at least paint them to blend with the rest of the airframe!

[xviper]

I can see no need for reverse direction servos if you scratch build. Why not just use a regular direction servo mounted upside down for flaps, since they are usually mounted flat. Why mount them mirror image? Because it's more aesthetically pleasing? I don't think being able to see the black servos is aesthetically pleasing! They could at least paint them to blend with the rest of the airframe!

I've done that with scratch built. Instead of mirror image, each servo is mounted the exact same way on both sides. That means one is more inboard than the other and really, can't see the difference and the weight of the servo being not quite the same distance from the center line of the plane also makes little difference. Having said that, most planes (PNP, BNF, ARF) are generally mirror image mounted and need one reversed servo. You'd have to ask the manufacturers why.

[drawn11]

what is the difference between a regular servo and a reverse servo and are the throws the same?

The difference between a regular and reverse servo is the direction; regular does it clockwise; reverse does it counter clockwise. I agree with RRHandy, their throws are the same. You can modify them however. Here's how you can go about that: https://www.youtube.com/watch?v=rU7LDKdKQH0