A sea trial or trial trip is the testing phase of a watercraft (including boats, ships, and submarines). It is also referred to as a shakedown cruise.Sea trials are an important step within the boat buying process that allows you to take a boat for "test run. I have been summoned for jury duty for the first time ever! A sea trial is the marine equivalent of a test drive, crucial for assessing a vessel's performance before it is fully commissioned or sold. Here we will discuss the brief nature of both , what all procedures are carried out during shop trials and sea trials. Buyer is in the market for a boat, but is not sure what one. The clerk will fill it out for you. You'll return to this area after the trials are complete for a comparison look. And monuments out of American and.