RedactedNarrative: V-1 was pulling an inner tube. Driver-1 stated he stopped to let the rider of the tube swap out with another passenger on the boat. He stated that as VICTIM was swimming to the boat he thought he had put the boat in neutral. As he was climbing the ladder to get into the boat his left leg got caught in the prop severely cutting it open. The driver of the boat jumped in and picked VICTIM up and put him in the boat. A boat passing by stopped and pulled V-1 to the closest boat launch and called 911. Floyd Ambulance arrived on scene and treated the patient until a medical helicopter arrived and air lifted him to Erlanger Medical Center. All safety equipment was in check and no alcohol or drugs were involved.