CONTROL SURFACE DEPLOYMENT MECHANISM

A deployment mechanism employing multiple, nonproportional, four-bar linkages for guiding the movement of an airfoil control surface. The linkages are connected at one of their ends to the airfoil control surface and at their other end to an airfoil. The connection points of each linkage to the airfoil define a set of lines which are skewed at progressively greater angles with respect to a reference line. The mechanism when activated guides the extension of the control surface into an overlapping position with the airfoil. The overlap forms a nozzle between the airfoil control surface and the airfoil surface. The amount of overlap at any point is a constant percentage of the airfoil chord length at that same point.