RedactedNarrative: V1 was turning around in the canal and lost control of the throttle mechanism.  As the operator of V1 was trying to regain control, the bow of the starboard side sponson of V1 struck the port side of V2 at the dock.  This caused a approximately 6-8 inch hole through the fiberglass and kevlar of V2 two feet above the waterline amidships.