Kongsberg Promas with nozzle

Designed for efficient high bollard pull applications. Built on the successful Promas, this system unites a new type of nozzle which provides large pulling power at low speed and has a high free-running speed in transit. PROMAS with nozzle is the latest development for meeting various challenges on the market. The system is customised for the individual vessel and the shipping route to meet different ship profile requirements. Promas with nozzle is a fuel-efficient solution that is robust and reliable with high bollard pull. The positive effects can be proven by extensive reference lists of various ship types and customers. A natural evolution of the successful PROMAS system.The latest nozzle meets the highest requirements for pulling power at low speed at the same time with improved efficiency a high free-running speed in transit. Together with an optimised propeller, hubcap, rudder bulb, and a special rudder profile designed to work together in a ducted system. This maximises efficiency and minimising disturbances in the water flow both through and around the nozzle. The nozzle is a significant advancement in development on the profile used in conventional nozzle propeller installations. A typical anchor handler propulsion system will reduce fuel consumption in transit by 15-20% and improve bollard pull by around 5-8%. The rudder may be either a one-piece design or a medium flap-type, depending on the exact requirements of the operating profile. The PROMAS system gives additional positive effects. It optimises the hydrodynamic properties by reducing the creation of vortices, hub drag and the flow improvements allows for a more efficient blade design if done right. The rudder is twisted to reduce the risk of cavitation and increase propulsive efficiency and manoeuvrability. It is also possible to equip the rudder with a robust extension flap for improved low speed manoeuvering. The propeller can be manufactured and custom-designed with four- or five-bladed to fit t