RedactedNarrative: Vessel #1 advised he was making a starboard turn when vessel #2 hit the port side of his boat.  #1 was under sail, no engine power at the time of the collision. #2 advised he was traveling straight ahead under a cruising speed engine power.  #2 began tending a line and then looked and was unable to avoid #1.  #2 hit the port side of #1 causing damage to both boats.  No injuries were reported.