Rolls-Royce has announced the supply of ten MTU Series 4,000 engines and five MTU Series 2,000 engines, in addition to azimuth thrusters for the propulsion system, to Damen Shipyards Group.
The engines were installed in azimuth stern drive (ASD) tugs belonging to the Dutch and Swedish navies.
The first of the three Damen-built ASD type 2810 Hybrid tugs was delivered to the Dutch Navy (RNLN) last month, while the two new seagoing Ice Class tugs were delivered to the Swedish Navy at the end of last year.
The Dutch Navy's hybrid tug was fitted with a main mechanical propulsion system, equipped with two MTU 16V 4000 M63R engines, each of which generates 1840kW of power.
It is also incorporated with a diesel-electric propulsion system, equipped with a 640kW Genset based on a MTU 12V 2000 M41B engine, and batteries.
Damen sales manager Roel van Eijle said: "The MTU engines provide the tugs with excellent manoeuvrability and are ideally suited to operations carried out by the Dutch and Swedish Navies in port and coastal areas and at sea."
The hybrid propulsion system enables the tugs to operate in port and coastal areas, leveraging on battery power generated by the combustion engine.
It consumes 30% less fuel when compared to other tugs and emits 40% less exhaust emissions.
The Dutch Navy vessels have a maximum bollard pull of 60t and will be engaged in towing military vessels, ferrying crew members and positioning floating targets during military exercises.
The tugs delivered to the Swedish Navy are powered by two MTU 8V 4000 M63 diesel engines, each of which generating 1,000kW.
The ICE Class workboats feature a reinforced hull and can resist abrasion and mechanical stress.
Image: Rolls Royce MTU series engines are installed in Damen-built tugs for the Dutch and Swedish Navies. Photo: courtesy of Rolls-Royce plc.