RedactedNarrative: Operator stated he was traveling north in the middle of the boat channel in the upper end of the lake.  He was going approx. 20mph when the lower unit struck an unseen object.  The tiller handle jerked out of his hand and the boat began turning clockwise ejecting him and his brother (passenger/victim) out the port side.  V1 struck the victim and his shirt was entangled in the prop which caused the motor to stall out.  Operator was able to get back into V1 and paddle it to shore where he was able to free the victim.
  
  Passenger/victim stated as they were motoring, he heard a boom.  The next thing he knew he was in the water coming up to surface.  When he surfaced, he saw the boat motor coming toward him so he dove under water but the motor struck him in the back and his shirt entangled with the prop.  
  
  Lake pool elevation at the time was 499.38 or 2.62 feet below normal.  Operator was not wearing the cutoff safety lanyard and there was only 1 PFD in the boat.
NameOfBodyOfWater: GILLHAM LAKE
NearestCityTown: GILLHAM                       