Rolls-Royce design and equipment for two stern trawlers
Artist’s impression of the stern trawlers
The vessels are designed for catching shrimp and equipped with a wide range of Rolls-Royce equipment. Operational efficiency, low emissions, crew comfort, safety and excellent seakeeping capabilities have been the main considerations in the development of the ship design and equipment package.
“Rolls-Royce has a long history working with both Qajaq Trawl and Polar Seafood in designing several fishing vessels for use in a harsh climate," noted Monrad Hide, vice president of sales at Rolls-Royce Marine.
In addition to ship design, the equipment package includes engines, propulsion system, automation, winches, steering gear and a power electric system. The main engine in both vessels will be the Bergen B33:45 with nine cylinders. This highly efficient engine from Rolls-Royce is 20% more powerful per cylinder compared with its predecessor, the company says. This lowers the costs through the engine’s life cycle and allows smaller machine rooms on board.
Promas completes the propulsion system for the two new vessels. This solution integrates the propeller, a hubcap, rudder bulb and the rudder itself into a single hydrodynamically efficient unit. A hybrid shaft generator (HSG) will also be installed. As Rolls-Royce explains, HSG is an advanced power electric system that enables a much more flexible use of engine and propeller speed variations to maximise both propeller and engine efficiencies, which again helps reduce exhaust CO2 and NOx emissions.
On deck, a low-pressure hydraulic winch system with electrically driven auxiliary winches will be mounted. In bad weather the dynamic winches keep the trawl gear in the best position to fish efficiently and reduce wear on the equipment.
The vessels are of NVC 375 design by Rolls-Royce and will be about 80m long with hulls of DNV GL 1A* class Fishing Vessel. They are scheduled to be delivered from the yard in 2018/19.
The current Rolls-Royce order book in this market now comprises seven fishing vessels and two live fish carriers, according to the company.
