PSA Marine Singapore took delivery of two new tugs in late August: the PSA Thor and PSA Hulk.
The two tugs, designed by Robert Allan Ltd., feature a hull form developed to provide ship assist in berthing and un-berthing operations in ports/terminals, as well as coastal towing operations. They are also capable of escort service.
Both PSA Thor and PSA Hulk have an overall length of 32 metres, moulded beam of 12 metres, 5.42 metres depth, maximum draught of 5.53 metres and gross tonnage of 496.
The tugs were designed and constructed to satisfy all applicable rules and regulations of LR *100 A1 Tug, Escort Tug, Fire Fighting Ship 1 with Water Spray, *LMC, UMS, IWS, with a fuel oil tank capacity of 200 cubic metres and potable water capacity of 32 cubic metres.
Both tugs offer bollard pull, ahead of 82 tonnes; bollard pull, astern of 78 tonnes; and free running speed, ahead of 12.5 knots.
The deck machinery comprises a Rolls Royce heavy duty render/recover escort towing winch on the bow, spooled with 220 metres of soft line on working drum plus 150 metres spare line on the second drum. There is also a Rolls-Royce towing winch on aft deck with a capacity of 720 metres of Ø52 millimetre steel wire rope.
Main propulsion for each tug comprises a pair of Caterpillar 3516C diesel engines, each rated 2,525 kilowatts at 1,800 rpm, and each driving a Schottel SRP 510FP Z-drive unit, with a 2,800 millimetre diameter fixed pitch propeller.
The tug is fitted with a classed FiFi 1 system from FFS, driven off the starboard main engine.
The electrical plant consists of two identical Cummins QSM11-M diesel gensets, each with a power output of 220ekW, 50 Hz.
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