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A steering assist system for a marine vessel includes a steering vane extending into water in the vicinity of a steering device for the vessel and that is pivotable about an at least generally vertical axis by an electromechanical drive unit. The drive unit is energized by an actuator assembly in re

A steering assist system for a marine vessel includes a steering vane extending into water in the vicinity of a steering device for the vessel and that is pivotable about an at least generally vertical axis by an electromechanical drive unit. The drive unit is energized by an actuator assembly in response to the imposition of external forces on the steering system. The actuator assembly includes an actuator that is movable in response to the imposition of external forces in the steering system and a switch that is selectively engageable by the actuator arm to energize the drive unit to drive the steering vane to pivot. The actuator assembly may comprise a biasing assembly that resists movement of the actuator creating a force threshold that must be overcome to engage the switch. The biasing assembly may take the form of one or more springs, preferably having a settable preset.

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1. A steering system for a marine vessel, comprising: (A) a steering vane that extends into the water in the vicinity of a steering device for the vessel;(B) an electromechanical drive unit that drives the steering vane to pivot;(C) an actuator assembly that energizes the drive unit, the actuator as

1. A steering system for a marine vessel, comprising: (A) a steering vane that extends into the water in the vicinity of a steering device for the vessel;(B) an electromechanical drive unit that drives the steering vane to pivot;(C) an actuator assembly that energizes the drive unit, the actuator assembly including a. an actuator that is coupled to the steering device so as to be movable by the steering device upon the imposition of external forces thereon, andb. a switch that is selectively engageable by the actuator to energize the drive unit to drive the steering vane to move so as to counteract the external forces imposed on the steering device;wherein the actuator assembly further comprises a biasing assembly that resists movement of the actuator to create a force threshold that must be overcome by the actuator to engage the switch. 2. The marine steering assembly of claim 1, wherein the force threshold is between 5 and 10 lbs. 3. A steering system for a marine vessel, comprising: (A) a steering vane that extends into the water in the vicinity of a steering device for the vessel;(B) an electromechanical drive unit that drives the steering vane to pivot;(C) an actuator assembly that energizes the drive unit, the actuator assembly including a. an actuator that is coupled to the steering device so as to be movable by the steering device upon the imposition of external forces thereon, andb. a switch that is selectively engageable by the actuator to energize the drive unit to drive the steering vane to move so as to counteract the external forces imposed on the steering device;wherein the actuator includes an actuator arm, and wherein the actuator assembly further includes 1) a switch housing that supports the switch and 2) an adapter plate to which the actuator housing is fastened and which has a slot formed therein, and wherein the actuator arm is situated in the slot. 4. The marine steering assist system of claim 3, wherein gaps, formed within the slot on each side of the actuator arm, define a maximum distance through which the actuator arm can move laterally. 5. The marine steering assist system of claim 4, wherein the switch is part of a switch assembly comprising two switches located opposite one another, and wherein movement of the actuator arm in one direction activates one of the switches and movement of the actuator arm in another direction activates the other of the switches.