RedactedNarrative: Watercraft had three people on board and had just switched operators. They were about to get started pulling the tube, which had three occupants. The operator turned the boat too close to the tube. The tubers bailed off the tube into the water. The operator throttled down, bringing the bow up, blocking the sight of the tubers in the water. The boat ran over the tubers causing propeller cuts to two of the tubers. The third tuber was uninjured. Life jackets were being worn by all involved. One injured party was airlifted to a Twin Cities medical center. The other was transported by private vehicle to a local hospital emergency room. A citation was issued to the watercraft owner for allowing underage operation.