Heavily modified tractor tug from Sanmar
“This tug is the ultimate in the field of customisation that it virtually becomes a different model” Sanmar’s description of a tractor tug order for Italian tug owner Rimorchiatori Riuniti.
The order involves a RAL TRAktor 2500-Z design with the build name Deliçay VI making it the sixth example of the exclusive design, barely a year since the first vessel of its type was delivered to New Zealand. Modifications from what starts out as a typically standard design however makes this a rather special example.
A Caterpillar/Rolls-Royce combination of main engines and thrusters will produce 70tbp for this 25.4m LOA by 12m beam vessel. Built to Italian flag rules it will have a much modified deck machinery specification to meet the operators strict redundancy conditions along with the inclusion of tanks for recovered oil and keel cooling. It will meet FiFi1 standards, the system driven by a dedicated engine and will be outiftted with a crane and rescue boat on the foredeck.
DMT will supply two ‘mirror-image’ single drum winches and located port and starboard, swinging quick release tow hooks with an extended staple providing alignment to both winches. The hull and underwater appendages have been extensively tested at the Vienna Model Basin to obtain an optimal balance between controllability, manoeuvrability, fuel efficiency and roll damping. The tug’s stern features StRAke stabilisers developed by Voith and Robert Allan Ltd to improve directional stability allowing for a reduced skeg size.
Ali Gürün, project director at Sanmar said: "The brief we gave Robert Allan Ltd, the premier designer for our ever widening portfolio, was for a compact true tractor tug having forward mounted Z-drives, to give maximum efficiency in both ship-handling and towing duties. We worked closely together to produce this Delicay Series which has the benefit of being able to be customised to suit an operator's individual operational and geographical requirements. But this tug is the ultimate in the field of customisation that it virtually becomes a different model.” Adding: “Part of the success of this new series is the careful attention given to sound and vibration proofing the accommodation areas, especially over the thruster room. The fact that we are both a tug builder and fleet operator has taught us the importance of crew comfort.”
By Peter Barker
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