What is the minimum required Initial GM for a regular vessel according to the Intact Stability Code 2008?

• A. 0.10m
• B. 0.15m
• C. 0.20m
• D. 0.25m

Answer: (B)

The correct answer is based on the stability criteria set by the Intact Stability Code of 2008. The code establishes standards for the initial metacentric height (GM) to ensure that vessels have sufficient stability to operate safely under various conditions.

For a regular vessel, the minimum required initial GM is specified as 0.15 meters. This requirement is in place to ensure the vessel has adequate stability to prevent capsizing under normal operating conditions and during typical loading scenarios. By maintaining this minimum GM, the vessel is more likely to recover from heeling moments caused by wind, waves, and operational maneuvers.

Choosing this value helps in enhancing the vessel's performance and safety at sea, as a higher GM contributes to better resistance to heeling and promotes a quicker return to an upright position after being tilted.