In order to achieve the highest possible total efficiency of the vessel, the propeller must be a perfect match with the engine and the hull. A fixed pitch (FP) propeller is the choice when optimum efficiency, reliability and robustness are required. FP propellers are usually applied in ocean sailing vessels, for example container vessels, tankers, bulk carriers and dry cargo vessels.
Wärtsilä FP propellers guarantee superior propeller efficiency, reliability and minimum noise and vibration levels due to tailor-made designs with the latest available technology for all ship types.
Material
Wärtsilä patented Cunial® material provides excellent casting, machining and fatigue properties. An additional advantage is the good repairability. FP propellers can be produced with any required blade number and size from 3.5 m upwards.
Main targets when designing an FP propeller:
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Efficiency (related to speed)
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Cavitation behaviour (related to noise)
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Pressure pulses on the hull (related to vibrations)
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Meeting the strength requirements
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Application Examples:
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