RedactedNarrative: Operator of vessel #2 placed vessel in reverse to cease forward motion and then put it in neutral and throttle placed in idle.  Owner went on deck to place mooring lines and fenders.  While on deck he noticed vessel was still making headway.  He was slightly in forward gear.  He tried to reverse but could not avoid colliding with vessel #1 a moored vessel causing property damage.
NameOfBodyOfWater: Manchester Harbor
NearestCityTown: Manchester                    