Page 21: of Maritime Reporter Magazine (March 1998)

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Fennica was delivered in 1993 by Finnyards, and the hulking ves- sel features a wealth of electronics and machinery innovation which helps to make its harsh-weather operations seem all too routine.

ECDIS aside, Fennica utilizes its full complement of advanced equipment and highly trained offi- cers and crew to make light work of Finland's notorious iceflows.

During a day-long cruise out of the northern port city of Oulu — which entailed escorting a small chemical tanker for more than 25 miles out — witness was given to the perfor- mance of the vessel's mostly

Finnish-supplied outfitting of machinery.

The ship is powered by a diesel electric arrangement which con- sists of four Wartsila diesel engines, ABB generators and cyclo-convert- ers, and a pair of 7.5 MW

Aquamaster 360-degree rotatable thrusters.

When asked of the systems performance under severe conditions, the captain said that the manueverability, stability and overall performance achieved by the arrangement was superior to any other vessel he had sailed on.

Additional maneuverability is got- ten through the use of three 1,150 kW Brunvoll bowthrusters.

In open water, the arrangement can power the 381 x 85 ft. (116 x 26 m) vessel to 16 knots, which

Fennica can maintain a continu- ous eight knots while breaking through six ft. (1.8 m) of ice.

While impressive when smash- ing through ice (and rescuing the chemical tanker when it got stuck!), Fennica's true value comes from its multi-purpose design. It has a host of features and opera- tional capabilities which make it a favorite workhorse in the harsh

North Sea for eight months per year.

In particular, the vessel's 234- ton bollard pull is found to be very useful in the trenching and ploughing of cables and pipes, an operation it can easily handle without the assistance of other vessels. The large Fennica fea- tures accomodations fo 82, ensur- ing plenty of room for the number of work hands needed for such

March, 1998

Fennica

Length 381 It. (116 m) 85 ft. (26 m)

Draft 23 to 27.5 ft. (7 to 8.4 m)

DV.'I 1,650 to 4,800

Output 21,000 kW

Propulsion Units (2) 7,500 kW

Bowthrusters . (3) 1,150 kW

Speed, open water 16 knots

Speed, .8-m ice 8 knots

Speed, 1.8-m ice continuous

Bollard pull ... 234 tons 92

Deck crane ... 15 ton, 5 ton 120 ton

Towing winch 12) 300 ton

Classification

DnV +1A1, Tug, Supply Vessel, SF, Icebreaker

POtAR-lO, HELDK, EPR, EO, DNYPOS AUTR operations. Its normal crew for icebreaking operations is 21.

Fennica's 197-ft. (60-m) (1,045 sq. m.) deck space is particularly suited for handling large offshore equipment efficiently and safely.

The bridge is fitted with a "Who's Who" list of marine elec- tronic equipment, including prod- ucts from Selesmar, Magnavox,

Sailor and Leica.

The ship's dynamic positioning system allows its position to be determined within one meter of accuracy, and all of the icebreak- er's functions can be controlled from the bridge. Another vessel of the Fennica class, albeit smaller because of its operational responsi- bilities further south, is due to enter service for the Finnish

Maritime Administration in mid-

May of this year. Worthy to note is the use of the ABB azipod system on this vessel, which will have a shaft output of 10,000 kW. The vessel was originally scheduled for delivery in April, but problems with its propellers have caused a delay of a few weeks. Specifically,

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