Study of the Interceptor’s Effect on the Ship’s Motion During Maneuvering in the Open Free-Running Model Test

The addition of two interceptor devices on the transom has been proven to enhance the ship's maneuverability. The maintenance of ship stability when maneuvering is of utmost importance in ensuring the safety of the ship. The present study investigates the influences of the interceptor on the motions of a model ship while performing turning maneuvers inside an open pool. The open free-running test involves the evaluation of a model ship maneuvering through the utilization of motion measuring sensors, including accelerometers, gyroscopes, and a Global Positioning System (GPS) for motion and trajectory recording. Five different combinations of interceptor blade heights (d) are examined, which included the use of 100% d, 50% d, and 0% d. Based on the test results, the significant discrepancy between the two blades, where one blade has a 100% d value and the other blade has a 0% d value, yields the most optimal maneuvering performance, with the highest roll and yaw velocity of 5.88 and 20.20 degrees per second, respectively.