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Aircraft Engines & Components #1424036

Built-UP Propellers

Built-up propellers are an attractive alternative for monobloc fixed pitch propellersUnderwater propeller blade installation and replacement allows uninterrupted vessel service (no dry-docking)Reduced operating costs thanks to the highly efficient hydrodynamically optimised propeller bladesStreamlined hub design with minimised hub diameterpropeller diameter ratioEasy transport and handlingBuilt-up propellers can be supplied in Bronze or Stainless SteelThe Wrtsil OPTI Design propeller methodology takes into consideration the full-scale interaction between the propeller and hull, thereby ensuring optimised efficiency
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Fixed Pitch Propellers

Wrtsil fixed pitch propellers are manufactured by the Wrtsil CME Zhenjiang Propeller Co., Ltd joint venture company. At this facility fixed pitch propellers with diameters from 1 to 12 meters and up to 120 tons of weight can be produced. Since the joint venture company was established in 2004, more than 2000 propellers have been produced. Furthermore, Wrtsil CME is able to take advantage of the extensive experience and databases of LIPS and Wrtsil with regard to propeller design and production technology. The propeller and shaft line design tools are based upon long experience with calculations, model test results, Computational Fluid Dynamics (CFD), and full scale results. Propeller efficiency, noise and vibration requirements are the main considerations for propeller designs that can be applied for a wide variety of speeds and power densities, and for any type of ship. The unique Wrtsil Cunial propeller material provides excellent casting, machining and fatigue properties.
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Inland Waterway Propellers

High-end propeller technology for inland waterway and coastal vessels, including luxury yachts and governmental shipsReduced operating costs thanks to high-efficiency hydrodynamically optimised propellersTailor-made propellers with excellent material quality and reparability propertiesOpen propeller or propeller in 19A or a Wrtsil High Performance (HP) nozzleShafting system complete with stern tube, seals and bearingsv
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