Critical Angle of Heel

The critical angle of heel is the maximum tilt or inclination of a ship when the vessel begins to lose stability and risk capsizing. It occurs when the center of gravity (weight distribution) and the center of buoyancy (water displacement) align in such a way that the ship's righting moment (restoring force) is just enough to keep it upright. Beyond this angle, the ship's stability decreases rapidly, and it may overturn. Understanding this angle is crucial for safe ship operation, ensuring the vessel remains stable during maneuvers or rough seas.