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.