''Semyon Chelyuskin'' () was a

Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

icebreaker An icebreaker is a special-purpose ship or boat designed to move and navigate through ice-covered waters, and provide safe waterways for other boats and ships. Although the term usually refers to ice-breaking ships, it may also refer to smaller ...

in service from 1965 until at least 1988. It was one of twelve Project 97A icebreakers built by

Admiralty Shipyard The JSC Admiralty Shipyards () (''formerly Soviet Shipyard No. 194'') is one of the oldest and largest shipyards in Russia, located in Saint Petersburg. The shipyard's building ways can accommodate ships of up to , in length and in width. Mili ...

Leningrad Saint Petersburg, formerly known as Petrograd and later Leningrad, is the List of cities and towns in Russia by population, second-largest city in Russia after Moscow. It is situated on the Neva, River Neva, at the head of the Gulf of Finland ...

in 1961–1971.

Description

In the mid-1950s, the Soviet Union began developing a new diesel-electric icebreaker design based on the 1942-built steam-powered icebreaker ''Eisbär'' to meet the needs of both civilian and naval operators. Built in various configurations until the early 1980s, the

Project 97 icebreaker ''Dobrynya Nikitich'' class, also known by its Soviet designation Project 97, is a diverse series of diesel–electric icebreakers and other icebreaking vessels built in the Soviet Union. In total, 32 vessels were built in various configurations ...

s and their derivatives became the largest and longest-running class of icebreakers and icebreaking vessels built in the world. Of the 32 ships built in total, the unarmed civilian variant Project 97A was the most numerous with twelve icebreakers built in 1961–1971. Project 97A icebreakers were long overall and had a beam of . Fully laden, the vessels drew of water and had a displacement of . Their three 10-cylinder 13D100

two-stroke A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston, one up and one down, in one revolution of the crankshaft in contrast to a four-stroke engine which re ...

opposed-piston

diesel engine The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compr ...

s were coupled to generators that powered electric propulsion motors driving two propellers in the stern and a third one in the bow. Project 97A icebreakers were capable of breaking thick snow-covered ice at very slow but continuous speed.

History

The eighth of twelve Project 97A icebreakers was

laid down Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one ...

on 12 December 1964, launched on 28 February 1965, and delivered to the North-Eastern Directorate of the Maritime Fleet on 11 August 1965. Initially named simply ''Ledokol-8'' (),

Russian Russian(s) may refer to: *Russians (), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *A citizen of Russia *Russian language, the most widely spoken of the Slavic languages *''The Russians'', a b ...

for "icebreaker", it was renamed ''Semyon Chelyuskin'' in 1966 after the 18th century Russian polar explorer and naval officer. The icebreaker was stationed in

Tiksi Tiksi ( rus, Ти́кси, , ˈtʲiksʲɪ; , ''Tiksii'' – lit. ''a moorage place'') is an urban locality (an urban-type settlement) and the administrative center of Bulunsky District in the Sakha Republic, Russia, located on the shore of the B ...

. ''Semyon Chelyuskin'' was taken out of service in September 1988. Some sources state that the vessel was broken up shortly thereafter in China while others claim that it served briefly with the Vietnamese Navy until the 1990s.

References

Icebreakers of the Soviet Union 1965 ships Ships built at Admiralty Shipyard {{Project 97 icebreakers