Final answer:
De-Icing Boots, Heating Systems, Propeller Coatings are commonly used for propeller ice control.
Step-by-step explanation:
There are several systems commonly used for propeller ice control:
De-Icing Boots: These are rubber inflatable boots that are installed on the leading edges of the propeller blades. They are designed to periodically inflate and deflate, breaking off any ice that may have formed on the propeller.
Heating Systems: Some propellers are equipped with electric or hot gas heating systems. These systems heat the blades to prevent ice formation or melt any ice that has already formed.
Propeller Coatings: There are special coatings available that can be applied to the propeller blades to make them resistant to ice buildup. These coatings create a smooth surface that ice cannot easily adhere to.
Common systems used for propeller ice control include heating methods and mechanical methods. Heating methods may utilize electrical heating or bleed air from the engines to prevent ice buildup on the propellers.
Mechanical methods, on the other hand, typically involve the use of boots or surfaces that can break off any ice through deformation or vibration. In cases such as nuclear-powered ships, the ship's turbine system can also be connected to the propeller, where the rotation of the turbine shaft moves the propeller to aid in ice control through continuous movement.