Wärtsilä has launched a new anchor-handling tug supply (AHTS) vessel design, focusing on simplicity, efficiency, low fuel consumption and reduced environmental impact.
The new series of AHTS designs will feature a bollard pull of 180t, with options for 150t or 220t.
Fully compliant with ABS and the latest SOLAS regulations, the new design will offer a hybrid propulsion system with a two-speed gearbox.
Wärtsilä Ship Design vice-president Riku-Pekka Hägg said: "Wärtsilä has an impressive track record and extensive experience in producing efficient AHTS designs, all of which are based on proven technology and the utilisation of high-quality equipment.
"As a result, our ship designs consistently set new standards in terms of efficiency and environmental sustainability. Our unique expertise, knowledge and global support are the keys to maximising the profits and asset values of our customers."
According to Wärtsilä, it is estimated that the new design will offer a reduction of 20% to 25% in fuel consumption compared with conventional diesel mechanical four-engine solutions.
This design provides equipment solutions that are suitable for medium-to-large AHTS vessels. The two-speed gearbox system in this series is selected to meet the design targets of reduced costs and less complexity.
The hybrid, two-speed gearbox power take-in (PTI) solution will ensure a seamless transfer from one operational mode to another, with the ability to work efficiently in all operational modes.
The arrangement produces no loss in power take-off (PTO) during the change of propeller speeds, the company stated.
Image: Wärtsilä’s new AHTS is designed for simplicity, efficiency and low fuel consumption. Photo: courtesy of Wärtsilä.