RedactedNarrative: At about 1130hrs on 06/14/14 in Kings Bay at the entrance to "Three Sisters Spring", a rental jon boat with a twist throttle, spun around doing a 180 degree quick turn and struck it's port side bow into an unoccupied anchored charter pontoon boat's port side. The operator of the jon boat had lost control of it when he had put the boat in gear and throttled quickly. No injuries beyond first. Total estimated damage is $ 3200. No alcohol involved. 
  
  operator of vessel 1 started his rented 9.9 HP Plantation Inn boat, put it in gear and accelerated. The motor throttle is a hand twist type. Vessel 1 then surged forward out of control spinning around and hitting two other unoccupied and anchored vessels; only one of which was damaged. Vessel 1 sustained a small hole to it's front port bow.( Est.$ 200.00 damage) Vessel 2 sustained damage to it's port side, a hole through the side .(Est. $3000.00 damage) ( See attached pictures ) The operator of vessel 1 managed to shut the vessel off after about five seconds. The occupant of vessel 1 was uninjured. The operator/ charter captain of vessel 2 wasn't on board during the incident. All it's occupants, including himself, were snorkeling. During my investigation, I twisted the throttle of vessel #1 fully each way with the engine off, and it was smooth in each direction. I also spoke with a Plantation Inn employee who came to retrieve vessel 1 at my request, and he advised all their rental boats of the same type have the throttle hand twist type without a spring return. In other words, the operator has to reverse the throttle to slow down, he just can't let off of it . The operator of vessel 1 refused medical treatment at the scene. Sworn written statements were taken from operator 1 and the charter captain of vessel 2. No alcohol was involved. I issued the operator of vessel 1 a warning for careless operation. ; Operator of vessel 1 sustained a contusion to his left forearm, bruising to his back, and a small laceration to his left arm. He refused treatment at the scene. Pictures of injuries included with report.