This document presents a case-based reasoning system for handling ship turning problems. It discusses factors that influence ship turning such as wind velocity, wind direction, ship speed, wave resistance, and propeller speed. The system uses these factors to calculate the turning angle and time for previous emergency cases. It then uses the previous cases to help determine the best response for new emergency situations by comparing the key factors and identifying the most similar past case. Graphs are generated to help users visualize how the new case compares to previous ones. The system aims to provide recommendations to ship captains on turning angles to safely maneuver the ship during emergencies.