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Thursday, October 1, 2020 

A pair of Robert Allan Ltd (RAL) designed RAstar 3200-SX terminal support/escort tugs has recently been delivered from Sanmar in Turkey to Orkney Island Council Marine Services, in the UK.

The two tugs, Odin of Scapa and Thor of Scapa, are replacing two of the owner's current three vessels.

The RAstar 3200-SX tugs are purposely designed with a shallower draught than other high-performance escort tugs and incorporate considerable input and collaboration from Sanmar. This includes design optimisation to minimise construction costs without reducing end performance, implementing feedback from the large number of companies already operating Sanmar built RAL-designed tugs and pre-engineering features, such as deck machinery, accommodation layout, etc., to easily allow future customisation requests to be quickly implemented.

The RAstar 3200-SX escort/ship-assist tug is a twin Z-drive, diesel-powered vessel, designed for ship-handling, towing and escort duties. The escort tug is equipped for operations over the bow and stern, with a powerful escort winch at the bow for escorting and ship handling operations, and a towing winch, towing pins and rounded transom at the stern for towing.

Engines are twin Caterpillar 3516, rated 2350kW at 1800 rpm, each driving a Rolls-Royce (Kongsberg) US255 CP Z-drive unit with 2.8m propellers. Three Cat C4.4 diesel gensets provide auxiliary power.

Accommodation is provided for a crew of six, while the wheelhouse is designed with a single split control station for maximum all round visibility. The engine room features an acoustically isolated switchboard room.

On trials, the Odin of Scapa and Thor of Scapa met or exceeded performance expectations, with the bollard Pull, ahead, 78t and a free running speed of 14.3 knots.

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