RedactedNarrative: Unit 1 was traveling upstream and Unit 2 was traveling downstream on a head on, or nearly so, course with each other.  Both Units turned into each other’s paths three times trying to avoid a collision.  Unit 1 struck Unit 2 on the aft port quarter.  Unit 1 ramped up on Unit 2 and slid down the port gunwale of Unit 2 as it did so.  This caused damage to the port gunwale of Unit 2 and to the keel of Unit 1.
  
  There were no injuries in Unit 1 but Unit 2 had three occupants injured in the crash.  
  
  An adult and child had skull and facial fractures and were transferred to Loyola Medical Center for advanced treatment.  The third occupant had a laceration on her forehead that only required stitches.  I believe the injures were all caused by contact with Unit 1.
  
  Unit 1 was at fault in this crash as the operator violated the navigation rules by initially not turning to the starboard in a head on, or nearly so, situation.