RedactedNarrative: Victim was tubing near the middle of the lake. He fell off the tube and the boat operator came to pick him up. The operator made a circle and pulled up near the victim. The operator placed the boat motor in reverse and backed up near the victim. The operator then thought he had the boat in neutral and the victim swam to the back of the boat. As the victim tried to climb into the boat, he was struck by the prop which was still spinning (fairly quickly based on the injury). The prop caused significant injury to the victim's right leg. Most of the calf muscle and skin was hanging from the front of the victim's leg. Skin on the side of the leg was filleted off and was supporting calf muscle/tissue on the front of the leg. The victim was airlifted to a hospital in St. Cloud.