i am curious, i don't switch the yaw damper on, willi be able to notice any difference?

 

I don't know about FSX but in the real world you will certainly experience dutch roll on larger aircrafts.

 

And just to be clear, Matt C is aboslutely right. You should never feel the need to touch the rudder except for landing and takeoff. In rare cases you MIGHT need it for unusual attitudes (and non normal flight operations of course).

The 737 rudder seen a lot of modifications from its first version due to some problems related to some factors (defective actuator wich freeze, too much deflection at low speed and so on) some of them ended with crash.

But basically the rudder on the 737 is not intended to be manually used by pilots except for the above mentioned situations, take off, landing, engine out.

The rest of the flight is assisted by the yaw damper wich has a 3° of rudder control.

The 737 does not need for turn coordination, Autopilot will not control the rudder either.

The only help is the WTRIS function wich helps the pilot in manual reversion movements. In this case and only in this case, the rudder will move (small amount) with control wheel movements for turn coordination.

It must be also clear that both flight control switches MUST be both in OFF position, at least one must be moved to the STBY RUD position and, YD must be ON to do this as the turn coordination is done by SMYD computer.

A little help in normal turns can be also given by the YD and also in eng out condition, but, the YD is limited to 3° of travel (with flaps not up) and 2° with flaps up, this means that it can only stabilize and will not act as a pilot command.

With lateral winds the plane will crab until pilot will move the rudder.