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Port Nelson, positioned at the top of New
Zealand’s South Island at the head of
Tasman Bay, has taken delivery of a
Damen ASD Tug 2310. Named ‘Tōia’,
which is Maori for “to pull”, she is the
first new tug there for 32 years and
represents a significant upgrade
Jointly owned by the Nelson City
Council and the Tasman District Council,
Port Nelson is a vital hub for the regional
economy and is investing in its
infrastructure both ashore and afloat in
anticipation of growth in the years ahead.
In recent years the port has been
steadily receiving ever larger ships, with
vessels of up to 248 metres becoming
regular visitors. Port Nelson is also not the
easiest harbour in which to manoeuver. At
4.5 metres, the tidal range is the largest to
be found anywhere in New Zealand, and it
creates strong currents. Added to that are
strong winds that can come up suddenly
from both the south and north.
The 23-metre tug was built at Damen
Shipyards Changde in China and is the
eighteenth to be built in the series.
Modifications to the standard ASD 2310
design to meet the particular needs of Port
Nelson included upgrading the bollard pull
from 46 to 50 tonnes, and the fitting of
Panama chocks through the stern plates.
Damen also built and installed a gangway
to a design provided by Port Nelson.
A Caterpillar propulsion package
includes a pair of 3512C diesels producing
1,500kW each. Rolls Royce US 205 MK1
ASD units are each fitted with 2,200mm
propellers and enable an operating speed of
12.7 knots and a maximum bollard pull of
50.4 tonnes. Electrical power is courtesy of
two Caterpillar C4.4T diesel gensets, each
Located on the forward deck is a
hydraulically driven split drum towing
winch with a pull of 16 tonnes at 11
metres/minute and a 118 tonne brake. An
electric capstan can haul in at 2.7 tonnes at
15 metres/minute. A Mampaey towing
hook on the aft deck has a safe working
limit of 650 kN.
A Furuno electronics suite is installed on
the bridge with radar, sounder, GPS, radios,
compass and AIS all in attendance.
‘Tōia’ travelled the 7,280nm from
Changde to Port Nelson distance on her own
hull with a Dutch crew aboard and entered
the harbor escorted by existing Port Nelson
tugs the ‘Huria Matenga’ and ‘WH Parr’.
Type of vessel:
Port of registry:
Port Nelson, NZ
Port Nelson Ltd, NZ
385 (full load)
2 x Caterpillar 3512C TA
HD+/C diesels, each
1,500bkW @ 1,600rpm
2 x Rolls Royce US 205 MK1
with 2,200mm propellers
2 x Caterpillar C4.4T
diesels, each 64.5kVA
Hydraulically driven split
drum, pull 16 tonnes @ 11
metres/minute, 118 tonne
Electric 2.7 tonnes @ 15
Mampaey, SWL 650 kN
Furuno FAR 2117
2 x Sailor 6222, 2 x Jotron
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DAMEN TUG TO BOLSTER PORT NELSON FLEET
AUSMARINE January/February 2017 57
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