RedactedNarrative: Vessel one (V-1) was traveling south on Blackwater River near Russell Harber Boat Ramp, at approximately 25 to 30 mph.   V-1 was pulling two tubes, one occupied by victim and the other was occupied by two subjects.  Victim while kneeling on his tube, crossed the wake of V-1 and became airborne.  When he came down his left leg was off the tube and entered the water.  He suffered a broken left femur in the fall off the tube.  ;