Propeller design considerations

Article Abstract:

A generation of new naval propellers are being designed towards the requirements of low noise or signature reduction, stealthy configuration and lower fuel consumption. For undersea vehicles, multi-component propulsor designs are becoming more popular while high-speed propellers are preferred for high-speed surface ships. Propulsor efficiency could be significantly enhanced by lowering the amount of cavitation-free operation or by providing limited amounts of sheet cavitation on propulsor blades. This would, however, be inconsistent with the requirements for low noise operations.

Germany, Product information, Ship Building and Repairing, Marine Propellers, Kvaerner Mandal

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Composite materials in naval applications

Article Abstract:

Glass Reinforced Plastic (GRP) Composite materials such as Fiber Reinforced Plastics (FRP) have proved to be excellent materials in many different applications and are most well-known and widest-spread naval application for Mine Counter Measure Vessels (MCMV). Low weight and the possibility to minimize signatures of FRP ships help to widen the range for naval applications.

Fibrous composites, Fiber reinforced composites

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Naval propulsors - recent developments

Article Abstract:

Several developments are taking place in the Naval propulsion and the requirements concerning the propulsion system of the naval ships are determined by the mission and operating profile of the vessel. Electric propulsion has offered a relatively straight forward method to overcome the disadvantage of reduced efficiency and increased operating costs.

Ship propulsion, Marine propulsion systems

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