steadies

Steadies, also known as stabilizing fins or trim tabs, are adjustable appendages typically found on the stern of a boat or other watercraft. Their primary function is to help control and stabilize the vessel's attitude in the water. By adjusting the angle of the steadies, a boat's trim can be manipulated, allowing the operator to correct for uneven weight distribution, reduce pounding in rough seas, or achieve a more efficient running angle. This adjustment can improve fuel economy and enhance the overall ride comfort for passengers.

Steadies are usually operated hydraulically or electrically, with controls typically located at the helm. They work by creating hydrodynamic lift or drag. When deployed downwards, they can lift the bow, which can be beneficial when accelerating or when dealing with heavy stern loads. Conversely, adjusting them to a more neutral or upward angle can help keep the bow down in certain conditions, improving visibility or stability. Some vessels may have a single steady, while others, particularly larger or performance-oriented craft, may be equipped with a pair. Their proper use is an important aspect of seamanship, allowing for optimal performance and safety across a range of operating conditions.