Replay system and method of ship collision accidents using free running model test

A replay system of ship collision accidents using a free running model test comprising:

• a ship collision replay simulation system configured to replay ship collision accidents by receiving a navigation trajectory of the ship collision accidents;
• a free running model system configured to perform a free running model test of the collision accident ship using a free running model ship;
• and
• a free running control system configured to remotely perform the free running model test,
• wherein a propulsion and steering command of a full ship scale of the accident ship for path tracking is generated in order to replay the accident along a collision trajectory on the ship collision replay simulation system, and
• real-time navigation information of the free running model ship is transmitted as information scaled with the model ship scale of the free running control system and the transmitted information scaled with the model ship scale is converted to information scaled with the full ship scale to be expressed as the navigation trajectory of the collision ship on the ship collision replay simulation system.