Manage vessel motions through a building storm: adjust course and speed to move off the synchronous rolling band, avoid the parametric rolling window, and keep accelerations within limits that protect cargo, crew, and structural integrity. Covers IMO MSC.1/Circ.1228 guidelines on intact stability in following and quartering seas, the polar diagram of safe operating speed, and the Master's weather-routing decision framework.
Parametric rolling in container ships and synchronous rolling in bulk carriers are the leading causes of cargo loss at sea and structural damage. This game trains the intuition to recognize dangerous motion patterns before they develop.