RedactedNarrative: On February 4th, 2019 at approximately 11:00 am, we were dispatch to a vessel hitting the dock at Old Port Cove Marina in North Palm Beach. A vessel hit the dock three times while trying to back out of the docks causing damaged to the dock railing. 
  
  Operator told us that it was his first time operating the vessel and he was not familiar with it. Operator tried to back out of the spot, but the vessel was not responding, he tried to put the vessel forward thinking there was enough space and hit the dock railing three different times. Operator told us that he didn't realize the trim tabs were in the down position and the vessel has a feature that will not allow it to backup if the trim tabs are down. The bow of the vessel had clear visual damaged and there were three hit marks on the dock railing.
  