Trim tab actuator for marine propulsion device

In a marine outboard drive mounted for steering movement about a generally vertically extending steering axis, a trim tab supported for movement relative to said outboard drive from a neutral position to a position for generating a hydrodynamic force for assisting in the steering movement of said outboard drive, a steering member adapted to be activated by an operator for steering said outboard drive by applying a force to said outboard drive directly from said steering member, force sensing means for detecting the occurrence of an operator induced steering force, power operated means for moving said trim tab immediately in response to the detection of an operator's steering input from said force sensing means including a plurality of preprogrammed maps for achieving the desired trim tab angle, and operator controlled means for selecting the map which controls said trim tab angle.