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History
Sweden
Name	Ymer
Namesake	Ymir
Operator	Swedish Maritime Administration
Builder	Wärtsilä Helsinki Shipyard, Finland
Launched	3 September 1976
Acquired	25 October 1977
Commissioned	1977
Homeport	Luleå
Identification	IMO number: 7505346 MMSI number: 265066000 Callsign: SDIA
Status	Active
General characteristics
Class and type	Atle-class icebreaker
Displacement	9,500 t (9,350 long tons)
Length	104.7 m (343 ft 6 in) o/a
Beam	23.8 m (78 ft 1 in)
Draft	7.3–8.3 m (24–27 ft)
Installed power	18.6 MW (24,900 hp)
Propulsion	Diesel-electric
Speed	18 knots (21 mph; 33 km/h) maximum 12 knots (14 mph; 22 km/h) service
Bollard pull	185 tonnes
Bunker capacity	2,259 m³
Endurance	6–8 weeks
Ice breaking capacity	1.2 m level ice at 3 knots

Ymer is the fifth and last icebreaker in the Atle-class. She was launched in late 1976, and on 25 October 1977 she was delivered to the Swedish Navy and departed the Wärtsilä Helsinki Shipyard bound for Stockholm, where she arrived on 3 November.

• PDF from Swedish Maritime Administration Archived 2014-01-06 at the Wayback Machine
• Newspaper article about Ymer (in Swedish)^{[dead link‍]}

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