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. Sea trials are an important step within the boat buying process that allows you to take a boat for "test run.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. Many civil cases settle before trial, and defendants commonly seek confiden- tiality agreements concerning the terms of settlement. This past weekend I was able to inspect the boat. The Mississippi evolved from a rumor into a thoroughfare of exploration and Euro-Indian commerce. 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. Did you get a Summons to Jury Service in the Mail? OF. Cases Argued and Determined.