Geared tab

摘要

An improved geared tab configuration for a moveable airfoil, such as an elevator of an aircraft, is provided which comprises a tab pivotally connected to the airfoil, and linkage connecting the airfoil to the tab for simultaneous opposing pivotal movement of the tab relative to the airfoil to a maximum tab deflection at a determinable intermediate upward airfoil deflection beyond which the relative tab deflection reverses and fairs to the airfoil at a determinable maximum upward airfoil deflection.