OSD expands its Azistern tug series
Offshore Ship Designers (OSD) has revealed the latest addition to its Azistern tug series with a compact, fuel-efficient tug featuring low wash and offering a degree of adaptability to suit specific requirements.
A look at the diverse fleet profiles of typical major harbour tug owning companies illustrates the desire to gain maximum efficiencies and benefits from tugs designed and fitted-out for specific roles. In short, the trend has in recent years moved away from the jack-of-all-trades shiphandling tug designed for multiple regions, ports and operational requirements.
OSD’s catalogue currently lists five members of the Azistern series family ranging from 24m to 37m in length and offering bollard pulls from ten to 120 tonnes including the 2250e low emission compact hybrid ‘e-tug’. This latest offering fits roughly mid-range in the Azistern portfolio and has been given the model name Azistern 2870.
The 390gt tug has a hard chine hull form which OSD states optimises energy-savings during transit and results in a very low wash, a feature that will benefit ports and harbours with restricted space or those that are particularly sensitive to infrastructure damage through vessel wash. Main particulars of the Azistern 2870 include a length of 28.3m on a beam of 11.5m, bollard pull of 70 tonnes, speed 12 knots and accommodation for six persons.
The design starts from a basic entry point and offers potential customers multiple deck equipment options designed to suit specific operational requirements dependent on end-user preferences. The options can include a double-drum towing winch on the foredeck with integrated anchor windlass and warping heads or alternatively a forward towing winch with separate anchor windlass and capstan units. A double-drum aft deck winch in a semi-sheltered location can be specified and the towing hook comes with multiple positioning options.
Other deck options include the inclusion of a stern roller, deck crane and external fire-fighting provision and another option available is the provision of a bow-thruster unit.
Different regions and administrations around the world often have their own specific ‘local’ requirements concerning crew accommodation. The Azistern 2870 has been designed with fully MLC-compliant crew cabins which include a number of ensuite washrooms. Access to the accommodation is via semi-sheltered areas and ample space is provided for the storage of loose deck equipment. The design also includes semi-sheltered engine room intake louvres and fully enclosed deck storage lockers, particularly suitable for operation in cold-weather regions.
OSD technical manager Herm Jan de Vries says: “The Azistern 2870 is the very latest addition to our Azistern family. Like its sisters, it is a highly flexible vessel which offers operators the innovative options they need in today’s challenging market conditions. The basic design is on the shelves, which results in a short delivery time for clients.”
By Peter Barker
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