A close look at Sanmar’s four new tugs for Svitzer
Last month this column briefly mentioned the impending delivery of Sanmar’s latest development, the Bigaçay class ASD tugs for Svitzer so with the arrival of the quartet at the Tanger Med 2 terminal in Morocco a closer look at this significant order is called for.
The four vessels: Svitzer Tanger, Svitzer Tetouan, Svitzer Chefchaouen and Svitzer Al Hoceima are Sanmar-exclusive models designed by Robert Allan Ltd, designated the RAstar 2900 SX class. Sanmar’s Bigaçay class designation follows the convention of naming its tugs after Turkish rivers and at 29.4m LOA and offering bollard pulls of over 90t are described as “the most powerful to serve in the Mediterranean Sea region” by Sanmar’s project director Ali Gürün.
The Bigaçay series was developed for Sanmar and a variant of the RAstar range described as ‘… compact tugs aimed at ensuring efficient construction while still meeting the customisation requirements of discerning clients.’ The design has a sponsoned hull form which has proven to provide significantly enhanced escort towing and seakeeping performance.
The quartet are powered by MTU main engines, each delivering 2,700kW to Schottel SRP560 CP azimuth thrusters. The installation is notable as explained by Knut Müller, head of the marine and government business department at MTU who said: “This is the first time high-speed engines have been used to power harbour tugs in this power class. To date, it has only been possible to use medium-speed engines for harbour tugs with a bollard pull of over 85 tonnes.” Electrical power is supplied by two 99ekW Caterpillar C4.4 gensets.
A comprehensive towing capability is ensured with Ibercisa supplying an escort towing winch forward along with towing winch aft. A 100t Data Hidrolik towing hook, Data anchor windlass and Palfinger deck crane are also included in the deck equipment list while FFS provide a main engine-driven external firefighting system meeting fifi1 notation via two forward bridge deck monitors.
Accomodation is provided for eight persons with master and chief engineer cabins on the main deck and three twin-berth cabins on the lower accomodation deck, all cabins are en-suite and with the area of operation in mind a comprehensive HVAC system is included throughout the accommodation and wheelhouse areas.
By Peter Barker
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