RedactedNarrative: UNITS 1 AND 2 WERE FACING SOUTH WAITING ON A BOAT THAT THEY WERE FOLLOWING TO THE MARINA.  ONCE THE BOAT PASSED, UNIT 1 THROTTLED UP AND TOOK A SHARP RIGHT TURN.  UNIT 2 ALSO THROTTLED UP TO FOLLOW UNIT 1.  UNIT 2 COLLIDED WITH UNIT 1 DURING THE TURN CAUSING BOTH OPERATORS TO FALL IN THE WATER.  THE BOAT TURNED AROUND AND ASSISTED BOTH OPERATORS OUT OF THE WATER.  THE OPERATOR OF UNIT 1 COMPLAINED OF SHORTNESS OF BREATH AND RECEIVED MEDICAL TREATMENT.