Two smaller deliveries from Damen

Damen’s 1907 and 1606 Stan Tugs are robust, conventional tugs with twin screw propulsion based around a single chine hull. They are particularly suited for small ports and dredging companies requiring a standard workhorse capable of various roles and as with the rest of Damen’s range can often be supplied from stock with short delivery time and customised to suit individual owners’ specific requirements.

The Federal State Unitary Enterprise Rosmorport recently took delivery of the ice-classed Damen Stan Tug 1907 ICE General Raevsky. A generous shearline and raised bulwarks provide protection for the working deck with a semi-raised wheelhouse accessible via a short stairway from a door at the after end from where another stairway serves the deck below. Access doors in both bulwarks are particularly suitable for the Rosmorport example which includes pilot services in its brief.

The wheelhouse has a helmsman’s seat and console forward with table and seating to starboard. Below the main deck there is a galley, sanitary space and three single cabins. The bulk of space below is taken up by the engine room with a generator located behind the starboard engine. Behind here is the aft peak/steering space with main engine exhausts routed through the transom stern. A Mampaey disc type towing hook (SWL 450kN) is fitted aft.

Flying the Russian flag the vessel is classed by RMRS with the notation KM* ICE2 R3 AUT3 Tug with basic functions listed as: towing, pushing, mooring and pilot services. Main dimensions are LOA 19.34m, beam 7.34m and draught aft of 2.95m. Two Caterpillar C32 TTA ACERT/A main engines produce a total of 1,268bkW (1,700bhp) at 1,800rpm driving two Kaplan II fixed-pitch propellers in 1,800mm Van de Giessen Optima nozzles via Reintjes WAF665 5.950:1 gearboxes. Auxiliary power is supplied by a single Caterpillar C4.4 NA 230/440V, 60kVa, 50Hz generator. Performance figures are 25.5tbp and speed 11.2 knots.

The second delivery to mention is a smaller Stan Tug 1606 Storm Titan, flying the Canadian flag for Ledcor Leasing Ltd. Towing, mooring, pushing and survey operations are listed as basic functions for the vessel, classed by BV to I + Hull MACH TUG Coastal Area notation. Main dimensions are LOA 16.76m, beam 5.94m and draught aft of 2.25m.

Basic layout is similar to the larger Russian Stan Tug 1907 but subtle variations demonstrate how these ‘standard’ tugs are able to be adapted to suit a particular requirement making them more than just a scaled up or down version. The wheelhouse layout is similar except that access is direct from the main deck (aft), the stairway to the deck below further forward on the port side. Below main deck a sanitary space and galley is provided, along with single crew cabin for four persons.

As with the Russian vessel twin Caterpillar engines provide main power via C18 TA/A models developing 894bkW (1,216bhp) at 1,800rpm and driving two Kaplan II fixed-pitch propellers in 1,350mm Optima nozzles via Reintjes WAF 246L 4.5:1 gearboxes. Auxiliary power provision is from another Caterpillar engine, a C2.2 NA, 230/400V, 20.3kVa, 50Hz model with two 24V main engine driven alternators. Performance figures include 16.7tbp and speed of 11.2 knots.

A notable difference with Storm Titan is the towing arrangement. The aft deck is home to a hydraulically driven single-drum winch with 200m of 24mm steel wire and a pull of 7.5 tons at 10.9m/min and 33 ton brake load. The fendering arrangement includes a substantial push bow cylindrical 380mm rubber fender and a continuous D-fender around the hull.

By Peter Barker