Finnish icebreaker Nordica (1994)

Nordica assisting ships outside Hamina, Finland, on 28 February 2009
History
Name:	Nordica
Owner:	Finnish Maritime Administration (1994–2004) Finstaship (2004–2010) Arctia Offshore (2010–)
Port of registry:	Helsinki,  Finland
Ordered:	June 1992
Builder:	Finnyards Ltd., Rauma, Finland
Yard number:	402
Laid down:	25 January 1993
Launched:	18 June 1993
Completed:	1 January 1994
Identification:	Call sign: OJAE IMO number: 9056985
Status:	In service
General characteristics
Type:	Icebreaker/Platform supply vessel
Tonnage:	9,392 GT 2,818 NT 1,650 to 4,800 DWT
Length:	116 m (381 ft)
Beam:	26 m (85 ft)
Draft:	7–8.4 m (23–28 ft)
Depth:	12.5 m (41 ft)
Ice class:	DNV POLAR-10 Icebreaker
Installed power:	2 × Wärtsilä 16V32D (2 × 6,000 kW) 2 × Wärtsilä 12V32D (2 × 4,500 kW)
Propulsion:	Diesel-electric (AC/AC) Two Aquamaster US ARC 1 azimuth thrusters (2 × 7,500 kW) Three Brunvoll bow thrusters (3 × 1,150 kW)
Speed:	16.5 knots (30.6 km/h; 19.0 mph) (max) 11–13 knots (20–24 km/h; 13–15 mph) (service) 9.5 knots (17.6 km/h; 10.9 mph) in 80 cm (31 in) ice
Crew:	Accommodation for 77 personnel
Aviation facilities:	Helipad

MSV Nordica is a Finnish multipurpose icebreaker and platform supply vessel. Built in 1994 by Finnyards in Rauma, Finland and operated by Arctia Offshore, she and her sister ship Fennica were the first Finnish icebreakers designed to be used as an escort icebreakers in the Baltic Sea during the winter months and in offshore construction projects during the open water season.

When Botnica was sold to Port of Tallinn in 2012, Nordica became again the newest icebreaker in service in Finland until the delivery of the new icebreaker, Polaris, in 2016.

The maximum overall length of Nordica is 116 metres (380.6 ft) and her length between perpendiculars is 96.7 metres (317.3 ft). The hull has a moulded breadth of 26 metres (85.3 ft) and depth of 12.5 metres (41.0 ft). Her draught varies between 7 metres (23.0 ft) as a Baltic icebreaker and 8.4 metres (27.6 ft) in Arctic conditions and offshore work. The gross tonnage of Nordica is 9,392, net tonnage 2,818 and deadweight tonnage ranging between 1,650 and 4,800 tons depending on the draft. The ship weighs 7,935 tons and has a maximum displacement of 12,800 tons.

Nordica is classified by Det Norske Veritas with a class notation 1A1 POLAR-10 Icebreaker Tug Supply Vessel SF HELDK EPR E0 DYNPOS-AUTR. Her ice class, POLAR-10, means that her hull is strengthened for unassisted operation in the Arctic, sub-Arctic and Antarctic regions, where the vessel can encounter winter ice with a nominal thickness of 1 metre (3.3 ft), pressure ridges, multi-year ice floes and glacial ice inclusions. The additional class notation "Icebreaker" states that she has no limitations for repeated ramming. To improve the maneuverability of the ship in ice her hull is wider at the bow than in the stern. These "reamers" increase the width of the ice channel and reduce friction between the hull and ice. In addition the forward part of the hull has explosion-welded stainless steel ice belt that reduces friction and protects the steel plates from abrasion.