Originally Posted by
Brian Abraham
An anti balance tabs deploys in the same direction as the control surface, making the movement of the control surface more difficult and requires more force applied to the controls by the pilot. The anti-servo tab serves to artificially increase stability and also make the controls heavier in feel to the pilot
Seeing as the rudder is hydraulically powered, the heavier feel to the pilot does not make sense to me. Perhaps the stability issue is the reason. Without hydraulics there is no manual control of any sort for the 727 rudders.
Are there any other jets with these anti-balance tabs along the entire trailing edge of the rudder, as well as taking up such a large percentage of the rudder chord length?