Abstract: A manual control appliance with includes a control lever mounted in a bearing for pivotal movement about a fixed point, converter devices coupled to the lever for converting deflections of the lever with respect to two orthogonal axes into electrical output signals proportional to the deflection of the lever with respect to each of the axes, and a preshaped part having a surface in the form of a spherical section and provided with a plurality of detent grooves which cooperate with a slider at a lower end of the lever. The slider cooperates with the detent grooves in such a manner as to transmit to a user a tactily perceivable sensation each time said lower tip moves across a detent groove in order to provide tactile information about stepped portions of said control lever without affecting operation of said converter means and without limiting pivotal movement of said control lever.