Rider Plates
Rider plates are metal plates that are installed on the bottom of a ship's hull to protect it from damage caused by contact with the sea floor or other underwater objects. These plates are typically made of steel and are designed to be sacrificial, meaning that they will wear down over time and need to be replaced. Rider plates are an important part of a ship's overall hull protection system, which also includes coatings and cathodic protection. Without rider plates, a ship's hull could be seriously damaged by contact with underwater obstacles, which could lead to leaks, flooding, and other serious problems.
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