Portside Towing added a Bureau Veritas-classed azimuth stern drive (ASD) tug to its fleet in Jamaica during April 2022 for towing, mooring, oil pollution control and fire-fighting
Damen Shipyards supplied Ajax, one of its ASD 2312 tugs, with an overall length of 22.8 m, beam of 12 m and draught of 5.6 m.
Propulsion comes from two Cat 3512C TA main diesel engines with total power of 3,804 kW at 1,800 rpm, driving two Kongsberg US 205 azimuth thrusters, with a propeller diameter of 280 cm. This gives Ajax a bollard pull of 68 tonnes and speed ahead of 13.1 knots.
In the engineroom are two Cat C4.4 TA generator sets generating 100 kW of electrical power at 400 V and 50 Hz, two Azcue /3A service pumps, a Azcue /05 bilge pump and Azcue CA40-1B fuel transfer pump.
The fuel system includes two coalescer filters with water separators, two CJC PTU3 27/81 oil purifiers and 54.6 m3 of fuel oil storage.
Ajax has box and keel cooling, two engine-drive hydraulic pumps and an oil pollution control unit. Its fire-fighting system has a pump driven by the main engine pumping 1,400 m3/hr of water and foam to one monitor.
There is accommodation for six crew, D-shaped-fenders along the sides, cylindrical fendering at transom corners and W-block and cylindrical fendering on the bow.
On the deck there is a hydraulically driven, double-drum towing winch with a brake holding force of 175 tons and pull of 35 tons at speeds of up to 40 m/min on the second layer. There is also a Mampaey towing hook of 1000 kN and an electrically driven capstan.
Ajax particulars
Owner: Portside Towing
Country of operation: Jamaica
Builder: Damen Shipyards
Designer: Damen
Design: ASD 2312
Length, oa: 22.8 m
Beam: 12 m
Draught: 5.6 m
Bollard pull: 68 tonnes
Speed: 13.1 knots
Main engines: 2 x Cat 3512C TA 1,902 kW at 1,800 rpm
Propulsion: 2 x Kongsberg US 205
