antiroll fin
Quick Summary
An antiroll fin, also known as a fin stabilizer, is a component used in shipbuilding to enhance a vessel's stability. These fins are small wings mounted on the sides of a ship that actively counteract unwanted rolling motions caused by waves. They work by moving in a way that opposes the rolling, often controlled by a gyroscope. While bilge keels also help reduce roll, antiroll fins are more effective. These fins extend from the ship's side and rotate about their axes to generate forces that oppose rolling. A significant consideration for these fins is the need to retract them when the ship is docked.123
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