RedactedNarrative: Operator stated he was trying out his new boat and motor.  Boat had tiller steering.  Operator stated as he was trying to trim the tiller motor on the vessel, he fell overboard and was struck on the right arm by the propeller.  Operator was assisted by another boat passing by.  They took him to Wilkerson ferry ramp and called 911.  Operator was taken to South Alabama Medical Center.  No damages reported and operator was only one on boat.