Robert Allan has designed a hybrid propulsion and icebreaking tug that is being built by Spain’s Gondán Shipyard for the Port of Luleå in Sweden. This will be a TundRA 3600-H tug that is designed for operating in extreme climate conditions in the northern Gulf of Bothnia.
This hybrid tug will assist and escort ships to and from the port and provide coastal towage, icebreaking, ice management, fire-fighting and emergency support. It will be capable of breaking ice with a thickness of 1 m at a speed of 3 knots.
Gondán Shipyard will build this 36 m tug with a with a hull structure that exceeds Finnish-Swedish ice class rules and has high environmental standards. The tug will be classed by Lloyd’s Register.
Robert Allan said it developed the hullform from similar TundRA icebreaking tugs that it designed for Svitzer for operations in Sakhalin Island, eastern Russia. The hull is also similar to ice-class tugs built for Group Ocean’s tugs operating in eastern Canada.
It will be equipped with a hybrid propulsion unit, which the port authority has requested. This will include two diesel main engines, shaft-generators/motors and batteries for energy storage. It will have a bollard pull of 90 tonnes when using both main engines in diesel-mechanical mode.
Icebreaking tug particulars
Design: TundRA 3600-H
Length, oa: 36 m
Breadth, mld: 13 m
Depth: 6.7 m
Bollard Pull: 90 tonnes
Total power: 2x 3,100 kW
Accommodation: 10 people