Atle-class icebreaker

Class of Swedish/Finnish icebreakers

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Icebreaker Atle

Class overview
Builders| Wärtsilä Helsinki Shipyard, Finland
Operators|

* Swedish Maritime Administration
* Arctia Icebreaking

In commission| 1974–
Completed| 5
Active| 5
General characteristics
Type| Icebreaker
Displacement| 9,500 t (9,350 long tons)
Length| 104.6 m (343 ft 2 in) o/a
Beam| 23.8 m (78 ft 1 in)
Draft| 7.3–8.3 m (24–27 ft)
Installed power| 16.2 MW (21,700 hp)
Propulsion| Diesel-electric
Speed|

* 19 knots (35 km/h; 22 mph) (maximum)
* 14 knots (26 km/h; 16 mph) (service)

Bollard pull| 190 tonnes
Bunker capacity| 2,200 m³
Endurance| 6–8 weeks

The Atle class comprises five icebreakers built for the Swedish and Finnish Transport Agency. The two Finnish ships, Urho and Sisu, are sometimes considered a separate class, but all are operationally identical.[1]

The ships were built by Wärtsilä Helsinki Shipyard in Finland, and have entered service in the mid to late 1970s.[1] The maneuvering system, incorporating dual rudders and dual bow propellers, represented significant technical innovation. They are also notable for their high level of crew comfort (for their time), to a point where Urho has served the Finnish government as a VIP transport.

## Ships

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* Atle, Sweden, commissioned 1974[1]
* Urho, Finland, commissioned 1975[1]
* Frej, Sweden, commissioned 1975[1]
* Sisu, Finland, commissioned 1976[1]
* Ymer, Sweden, commissioned 1977[1]

## References

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1. ^ a b c d e f g Harald, Patrik (2020-10-24). "Sverige och Finland planerar nya isbrytare – nu avgörs framtidens teknik". Hufvudstadsbladet (in Swedish). Retrieved 2024-07-12.

## External links

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* Media related to Atle class icebreaker at Wikimedia Commons