Rolls-Royce To Deliver Ship Equipment To The World’s Largest Tugs

Rolls-Royce has signed a contract to deliver propulsion and deck machinery for 13 new tugs, including five which will have a direct bollard pull of around 150 tonnes.

The contract, with Edison Chouest Offshore (ECO) is worth more than 38 million Euro. The 13 tugs are being designed and built at Chouest-affiliated shipyards in the USA.

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The five most powerful tugs will be 45 metres long and 17 metres wide, making them the world’s largest of their kind to date.

Rolls-Royce scope of delivery includes both large azimuth thrusters and winch packages, enabling the tugs to efficiently perform their main duties; general harbour assistance, braking or steering the vessel, or performing deep sea towing.

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Mikael Makinen, Rolls-Royce, President – Marine, said: “We are looking forward to once again working with Edison Chouest Offshore on this project to deliver our proven technology to its new fleet of highly capable tugs. This contract underlines our capability to supply mission critical equipment to customers undertaking demanding towing operations, where safety at sea, high power and responsive manoeuvrability are all essential factors.”

Eight of the vessels ordered by ECO will be equipped with two US 255 Fixed Pitch thrusters, while five will have US 60 Controllable Pitch Propellers.

All 13 vessels will be equipped with towing winches plus auxiliary winches from Rolls-Royce, all based on low-pressure hydraulics. The five largest of the tugs are to be equipped with winches with dynamic towing capability in the full bollard pull range, this is instead of towing on static brake which is most common for these type of vessels. The dynamic towing capability of the low-pressure hydraulic reduces risk during a towing operation, and reduces wear and tear on tow gear.


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