RedactedNarrative: V2 WAS LOADED ON TRAILER DEPARTING THE BOAT RAMP.  V1 WAS AFLOAT, UNDER POWER, BUT DRIFTING BACKWARD TOWARDS TWO LARGE CULVERTS WHEN THE OPERATOR OF V1 ABRUPTLY LURCHED V1 FORWARD STRIKING V2 ON THE RIGHT SIDE AT/ABOUT A 90 DEGREE ANGLE.