European ingredients in Argentinian ASD tug

'Brutus' has a conventional double chine ASD hull (Cummins)
'Brutus' has a conventional double chine ASD hull (Cummins)
The Cummins port main engine in place (Cummins)
The Cummins port main engine in place (Cummins)
One of the main engines ready for installing (Cummins)
One of the main engines ready for installing (Cummins)

Cummins Marine has provided the comprehensive machinery installation for a new ASD tug designed and built in Argentina and destined for both ship-assist and coastal towing duties.

The 28.8m LOA, 10m beam ASD tug, to be named Brutus has been designed by Ing. Emilio Noël and built by Astilleros Unidelta S.A. of Buenos Aires for Remolcador de Tiro de Navegación Maritima Nacional, Prefectura Naval Argentina.

Unidelta are located on the Rio Lujan in Tigre near Buenos Aires and are traditionally associated with building high speed passenger ferries, patrol boats and pilot and motor yacht catamarans. They have an engineering office in the city of Buenos Aires responsible specifically for the planning and technical work, this facility opening in 1969 with the shipyard itself commencing operations in 1992. Their products include a high level of innovation, something that is being taken further with their move into the world of tug construction.

The machinery installation comprises two Cummins 16 cylinder QSK60M diesels producing a total output of 5,400hp (4,026kW) at 1,900 RPM with propulsion provided by Rolls-Royce Type US205/P20 FP azimuth thrusters. Performance figures are quoted as 65tbp and design speed of 12 knots. Brutus is equipped for fire-fighting operations provided by a Cummins 6BT 5.9-D(M) diesel pump set supplying 200m3/hr to two 100m3/hr monitors. Completing the Cummins outfit are two 80kW gensets powered by a 6B-CP diesel engine.

Rolls-Royce also supplied a combination towing and anchor winch located forward with provision for towing over the stern via a Mampaey quick-release disk type DCX50/65 towing hook (65 ton release load). A three ton capstan is also fitted aft.

The tug conforms to Lloyd’s Register notation +100A1 Tug with tank capacities including: 107.4m3 of fuel, 15.8m3 of fresh water and 6.5m3 of lube oil. The hull form features a double-chine which broadens aft leading to a fine deadrise at the stern allowing for efficient operation in both ahead and astern modes. Accommodation is provided for up to ten persons and the vessel is stated as being capable of operating as both a harbour and ship assist tug as well as be able to carry out coastal towing duties.

By Peter Barker

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