ROLLS ROYCE PROMAS PROPULSION AND MANOUVERING SYSTEM
|D O W N L O A D|
The short training video showing the Rolls Royce Promas propulsion and maneuvering system in detail. Subject system is a really novel design integrating the ship's rudder and propeller into a single system in order to provide optimization of the hydrodynamic efficiency.
This design implies fitting a special hubcap on the ship's propeller; subject hubcap is intended to streamline the flow onto a special bulb which is added to the ship's rudder - as a result, the flow separation is effectively reduced after the propeller. Eventually, the propeller's thrust increases since the energy which used to get wasted in the past, is now recovered from the water flow.
The bulb fitted onto the ship's rudder is also adding to the streamlining of the flow reducing the drag. The twisted design of the rudder is providing some further improvement in maneuverability and efficiency. Note that you will gain about 3-8% and 2-6% of additional efficiency for single- and double-screw vessels respectively.
In fact, any ship fitted with such system will benefit. It is much easier to watch this five-minute video and get even better understanding of the advantages that are offered to you by the Promas system.
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