RedactedNarrative: On the 31st Day of October Operator1 was Volunteering for the Head Race in down town Chattanooga at Ross''s landing. Operator1 had been conducting a safety launch to check the area of hazards before the event which was the next day. On his way back down river Operator1 stated that the motor on the Jon boat he was operating took a sudden abrupt turn to the left. Operator1 stated that the turn thru him off balance and he fell over board, when he entered the water his leg was struck by the propeller. Operator1 had a PFD Accessible in the Jon boat but could not reach it because he was holding onto the vessel and it was still in gear and running. The vessel had field with some water because of the abrupt turn and Operator1 was afraid it would sink so he moved to the bow of the vessel to help keep it from sinking, he was holding on to the bow when another individual which was helping with the event came over to help him, he threw him a PFD and helped Operator1 into the Chattanooga Fire Dept.''s Vessel which took him to shore for medical attention. The vessel was recovered by the responsible party for the Atlanta Rowing Club. operator had only operated a vessel by himself for 10-15 hours and that his inexperience in operating may have caused him to be unprepared for unknown hazards associated with boating. He was not aware of what made the boat turn sharply.