RedactedNarrative: Based on statements from the Operator and investigation of the incident, Vessel 1 was in operation on the lake when Vessel 1 experienced mechanical problems with the throttle resulting in an inability to operate Vessel 1 in any direction expect reverse.  Shortly thereafter, severe weather struck the lake and, because Vessel 1 was unable to be controlled/steered, Vessel 1 grounded on the shoreline, suffering substantial damage to the keel near the bow of the vessel.