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the hold is 116.2m long and 19m wide.
With GL Ice Class E2 certification, the vessels
are billed as extremely reliable and safe. They have
already been booked for service between Thailand
and Australia, to carry equipment for Woodside
Petroleum’s Pluto Project.
Containerships
Ice-going pair for
Aker
Aker Yards has been awarded a contract by Royal
Arctic Line A/S in Nuuk (Greenland/Denmark)
to build two ice-going containerships for Arctic
operation. The total contract value is about €80
million. Delivery by Aker Yards Germany is scheduled
in the second and third quarter of 2010.
The two new ships are of the type Aker ACS 587
which fulfils the latest international demands. Both
vessels have high ice class 1A, and are 113.0m long
and 22.7m wide. The basic design was developed by
Royal Arctic Line according to their needs in the
Arctic environment. With deadweight of 8550tonnes
the ships have a total container stowage capacity
of 587TEU each with 237 reefer sockets (FEU), of
which 130 reefer containers can be transported in
holds. With a main engine (MAN B&W 6S46MC-C)
output of 7860kW and a controllable pitch propeller
plant they reach a speed of 15.3knots. The ships will
be equipped with a bow and stern thruster of 780kW
each and two cranes with a capacity of 45tonnes SWL
at 29.8m each.
The largest azimuthing propulsors using the
Propulsion
mechanical geared transmission principle to date.
steerprop for the
Arctic
drive motor to the 4500mm diameter, open built-up
propeller made of stainless steel. The azimuthing
Steerprop has been chosen by two Russian shipowners function is actuated by electric motors, typical to
operating Arctic vessels to engineer and build the Steerprop azimuth propulsors. The electric steering
largest azimuthing propulsors of mechanical geared with frequency converters is an excellent solution to
transmission principle to date. ice operation for accurate and smooth control.
The four icebreakers are being built, with two from The Arctic Supply Vessel for Lukoil was recently
Baltiysky Zavod, St Petersburg, Russia for RosMorPort launched by Keppel Singmarine.
and the other pair from Keppel Singmarine in The two Lukoil Arctic vessels will support the
Singapore for Lukoil. Varandey Terminal in the Barents Sea. They are
The two RosMorPort’s line icebreakers are 114m being built to different specifications: the Arctic
long, and 27.5m wide. The design draught is 8.5m, Supply Vessel is 81.6m long, 18.5m wide; the draught
speed 17knots. The vessels are specified to operate at is 9.1m. The two Steerprop SPO 4.0 ARC units are
the speed of 3knots in level ice of 1m having snow to transmit 5200kW each through the propeller of
cover of 0.1m-0.2m. The ships will substantially 4.0m diameter. According to RMRS rules the ice
improve the marine and environmental safety of the class is LU6. The icebreaker is 100m long, 21.7m
oil transport in the Baltic Sea. wide, and the draught is 10.5m. The twin Steerprop
The Steerprop SPO 4.5 ARC azimuthing propulsion SPO 4.5 ARC units transmit through 4.5m open
units will be built to the rules of RMRS, ice class LL6. propeller 8400kW each. They are the largest geared
Each unit is able to transmit 8000kW from the electric azimuthing propulsors built. NA
8 The Naval Architect March 2008
NA Mar 08 - p6+
8.indd 8 10/03/2008 14:28:58
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