Abstract: A rudder assembly for sail boats and the like comprising a rudder support frame pivotally attached to the stern portion of the boat, a substantially horizontal tiller fixedly attached to the upper portion of the rudder support frame, a rudder blade pivotally coupled to the rudder support frame, a rudder blade control mechanism including kickup control arm pivotally coupled to the upper portion of the rudder blade and an interconnecting kickup control member pivotally coupled between the kickup control arm and the substantially horizontal tiller to selectively move the rudder blade between a first or lower position, intermediate or trail position and second or upper position by the pushing or pulling of the kickup control arm, the rudder blade control mechanism further includes a lock member fixedly attached to the kickup control arm disposed to selectively engage the substantially horizontal tiller to lock the rudder blade in the lower or upper position.