VOIMA: The World’s Oldest Active Icebreaker Turns 60
|by Kalle Id
On 24th January 2014, the world’s oldest icebreaker in active service, the Finnish VOIMA (the name translates as “power” or “force”) left Helsinki to start another icebreaking season.” In a few days, on 13th February, the VOIMA will celebrate her 60th birthday. To commemorate this milestone, I would like to take this chance to look at the history of this ship.

The design process for the VOIMA begun after the end of World War II. The Finnish icebreaker fleet had survived the actual wartime without major losses, but after the war the prime units of the fleet, the VOIMA of 1924 and the JÄÄKARHU (“polar bear”) of 1926, had to be ceded to Soviet Union as war reparations.
To replace the lost icebreakers, a new unit was ordered from the Wärtsilä shipyard in Helsinki in 1948. Initially planned to be named INTO (“eager”, also a male given name), the new unit was given a new, forward-looking design with two bow propellers. Bow propellers were not a new invention – they had first been featured in the Great Lakes train ferry ST. IGNACE of 1888, and the first dedicated icebreaker to have one was the Finnish SAMPO of 1898 – but hitherto no icebreaker had been equipped with two bow propellers (”Sampo” is a mythical gold-grinding mill from the Finnish national epic Kalevala). The new arrangement was jokingly referred to as “four-wheel drive” by the Finns, and the arrangement became a norm for Baltic Sea icebreakers for the following decades.

Although ordered in 1948, due to lack of funding (in part caused by the war repartions to the Soviets) the keel of the new VOIMA was not laid until 1951 and the ship was eventually completed in 1954. The VOIMA proved to be an excellent design – during the difficult 1955-56 winter she helped an unrivalled 616 ships, amongst them the older icebreakers SAMPO of 1898 and TARMO (”vigour”, also a male given name) of 1907 that could not break free from thick pack ice. Three further units of the VOIMA’s design were built for the Soviet Union and one for Sweden. The two subsequent Finnish icebreaker classes – the KARHU (”bear”) class of 1958-1960 and the TARMO class of 1964-1970 – were also based on the design of the VOIMA.

By the mid-1970s, the VOIMA was the oldest unit in the Finnish icebreaker fleet and looked to be on the way to being replaced during the next decades, but then something interesting happened: the decision was made to extensively modernise the VOIMA. The reasons for this decision were twofold: on one hand, modernising the VOIMA cost only about 60% of the price of an entirely new icebreaker; and on the other, the modernising process provided work for Finnish shipyards during the economic downturn experienced at the time. The VOIMA sailed back to Wärtsilä in 1978-79, where her pull-plating and engines were replaced, while the superstructure was entirely rebuilt, allowing for crew quarters to be moved out of the hull and hence away from the worst noise of the icebreaking.
When the VOIMA re-entered service in 1979, her hull was painted red (instead of the traditional black) to improve visibility. This trend did not spread to the rest of the fleet, and in the mid-80s the VOIMA reverted to the traditional black-and-yellow colour scheme. If there had been any plans of modernising the other 1950s-60s icebreakers, these never came to pass. Due ships requiring icebreaker assistance growing ever larger, the KARHU-class was replaced by the newbuildings OTSO and KONTIO (both name translate as “bear”) in 1980s, and the TARMO class by new “multipurpose icebreakers” FENNICA, NORDICA and BOTNICA in the 1990s. Thanks to her refit, the VOIMA has remained in service to this day. Despite her long career, she is not the longest-serving icebreaker ever, or even the longest-serving Finnish icebreaker – the latter honour goes to the first Finnish iceabreaker MURTAJA of 1890, that was only withdrawn in 1958.

The first plans to replace the VOIMA were made in 2008, when the idea of replacing her with another multipurpose icebreaker was aired. In the end the decision was made to build another traditional icebreaker optimised for Baltic Sea use, which was ordered for Arctech Helsinki Shipyard – the same yar that built the VOIMA – in January 2014. The most recent news, however, is that the new unit will replace the BOTNICA sold in 2012 to Estonia – or more precisely the Swedish FREJ chartered to replace the BOTNICA. The current plan is for the VOIMA to remain in service until the mid-2020s. If so, she is likely to still be in service on her 70th birthday.
For for more photographs by Kalle Id, including additional images of the VOIMA, please visit kships.blogspot.com
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Very interesting report(as usual)but this time not with traditional floating hotels!!
I always enjoy reading Kalle’s stories as I did this one.
I never knew that icebreakers had props forward..
Interesting.
Are the forward propellers part of the ice breaking equipment or are they there to provide reverse thrust in case the ship gets stuck in heavy ice?
Glad to see this is of interest to people!
As to Richard’s question (and also James’ comment to a degree): The forward props are a part of the icebreaking equipment, yes. Their main purpose is to provide additional waterflow and hence help break the ice. Reportedly they particularly help when breaking ice covered by a thick layer of snow – don’t ask me how exactly, I’m not an expert on the technical side of things.
The forward propellers are problematic when sailing in open water, as they hurt the hydrodynamic performance of the vessel, and as such they are mostly used in vessels that spend very little time sailing in open water; most polar icebreakers don’t have forward propellers. Even in Baltic Sea icebreakers the trend was during the 80s and 90s to try to replace forward props with other technologies; the Finnish OTSO (1986) and KONTIO (1987) have an air-lubrication system instead, while the Swedish ODEN (1989) is equipped with nozzles spraying water on the ice.
The new Finnish icebreaker to be delivered next year will have a new take on the the forward prop, as she’ll have an azipod that’s housed inside the hull when sailing through open sea, but lowered to the water when icebreaking. It will be interesting to see how this will work.
Ice breakers have little – really, none, where am. I doubt I have seen one in person, maybe unknowingly, docked in Northern Europe perhaps.
Thanks Kalle for the fill in on these strong vessels.
Ken: If you’ve ever been to Saint Petersburg, you’ve probably seen several icebreakers, as the channel to the passenger harbour was lined with loads of them when I was last there (during the summer, that is). You might have also glimpsed some if you’ve been in Helsinki. Back in the day Swedish icebreakers also used to summer in central Stockholm, but today they spend summers in the northern Gulf of Bothnia – which makes sense, since the repositioning voyages are much shorther that way.
Kalle
I have been to St. P and Helsinki, however, I was not looking for icebreakers, too many other beauties around, ferries, cruise ships, and the like.
The US Coast Guard has icebreakers, they are used in major port rivers, notably of late, New York/New Jersey, the ice has been quite a problem this year due to the Polar Vortex.
I will keep my eyes peeled for icebreakers during future cruises!
Wow!
Kalle, the third azimuth thruster in the new Finnish icebreaker will be a normal one, not retractable.
Thank for the correction Tuomas!