Screw Vessel

Screw Vessel

 

a sea vessel driven by a screw propeller. Most of the ships in a modern powered fleet are screw vessels, including ordinary displacement vessels, submarines, and hydrofoils. Screw vessels may have one stern propeller (single-screw vessels) or several propellers (double-screw and triple-screw vessels); on some screw vessels (icebreakers and ferryboats) a propeller is also mounted in the bow section.

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The triple screw vessel is capable of 20 knots and can carry 50 passengers as well as 60,000 kg of cargo on the extensive aft deck.
The steel hulled, twin screw vessel has a 16 tonne bollard pull, and is also equipped with a dredging plough and A-frame for lifting.
Developed using the latest Computational Fluid Dynamics, Promas integrates the propeller, a hubcap, rudder bulb and the rudder itself into a single hydrodynamic efficient unit which can increase propulsive efficiency by 3-8 percent for single screw vessels and 2-6 percent for twin screw vessels and lead to improved manoeuvrability, reduced fuel consumption and emissions.