Project 97 icebreaker
Project 97 icebreakers and their derivatives are 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 for both civilian and naval service in the 1960s, 1970s and early 1980s, and several remain in service in Russia as of 2020.
![]() Project 97P icebreaking patrol vessel Volga at Petropavlovsk in 2007 | |
Class overview | |
---|---|
Name: | Project 97 |
Builders: | Admiralty Shipyard (Saint Petersburg, Russia) |
Operators: | Various |
Subclasses: |
|
Built: | 1960–1981 |
In service: | 1960–present |
Completed: | 32 |
Active: | 9 |
Laid up: | 1 |
Scrapped: | 21 |
Preserved: | 1 |
Background and construction
In the mid-1950s, the Soviet Union began developing a new diesel-electric icebreaker design that could meet the needs of both civilian and naval operators. At the time, the merchant marine relied largely on ageing steam-powered icebreakers, many of which had been built during the Imperial Russia era and would reach the end of their operational life in the coming years. In addition, the Soviet Navy possessed just one ice-capable vessel for patrolling the country's northern border, Project 52 Purga, which had been laid down already in 1938 but did not enter service until 1957.[1]
Technical development of the new icebreakers was entrusted to Saint Petersburg -based Central Design Bureau No. 15, today known as Central Design Bureau "Iceberg" and part of the state-owned United Shipbuilding Corporation, which based the hull lines on the Swedish-built steam-powered icebreaker Eisbär which Germany had handed over to the Soviet Union as war reparations in 1946. Discussions during technical meetings sometimes became heated as naval architects tried to include both civilian and naval requirements into the design. One of the sources of disagreement was the bow propeller which was considered essential for icebreaking operations in the Baltic Sea and other non-Arctic waters but susceptible to damage in heavier Arctic ice conditions.[1]
Once the final design had been developed, the construction of the Project 97 icebreakers and their derivatives was awarded to the Saint Petersburg -based Admiralty Shipyard. The construction of the first series, which consisted of largely similar triple-screw icebreakers with the exception of one twin-screw Project 97B hydrographic survey vessel, proceeded at a rapid rate: the hulls were assembled side by side on the slipway and launched at a technical readiness of 60 to 80 %. In 1960–1971, the shipyard delivered up to three vessels annually, often in different configurations, while simultaneously implementing various technical improvements devised during the operation of the first vessels of the series. The second series with eight Project 97P patrol vessels and one research vessel was built in 1973–1981.[1]
With a total of 32 vessels built in various configurations over more than two decades, Project 97 is the largest and longest-running class of icebreakers and icebreaking vessels built in the world. With the exception of nuclear-powered icebreakers, they were also the only domestically-built post-war icebreaking vessels in the Soviet Union and later Russia until the construction of Project 21900 icebreakers in the late 2000s.[2]
General characteristics
All Project 97 variants had a length overall between 67.7 and 73 metres (222 and 240 ft) and a maximum beam from 18 to 18.6 metres (59 to 61 ft). Fully laden, the vessels drew between 5.35 and 6.6 metres (17.6 and 21.7 ft) of water corresponding to a full load displacement ranging from 2,935 to 3,700 tonnes (2,889 to 3,642 long tons) with the later patrol and research vessel variants being somewhat larger than the early icebreakers. The hull form, derived from an older Swedish-built icebreaker, featured a round midship with pronounced tumblehome and practically no flat bottom or sides. While the curved hull lines resulted in low resistance and high maneuverability in ice, the vessels were very uncomfortable in open water due to excessive rolling.[1]
Both twin- and triple-screw Project 97 variants shared the same diesel-electric power plant with three direct current (DC) main diesel generators. The 1,800-horsepower (1,300 kW) 10-cylinder 13D100 two-stroke opposed-piston main diesel engines were in fact reverse-engineered Fairbanks Morse 38 8-1/8 diesel engines manufactured by the Malyshev Factory in the Ukrainian Soviet Socialist Republic. The engines were coupled to double-armature DC generators (2 × 625 kWe) that provided power to 2,500 hp (1,900 kW) electric propulsion motors driving two 3.5-metre (11 ft) fixed pitch propellers in the stern and, on variants with a third propeller, a 1,600 hp (1,200 kW) electric motor driving a 2.7-metre (9 ft) propeller in the bow.[1][3]
During initial icebreaking trials, triple-screw Project 97 variants were able to break 70 to 75 centimetres (28 to 30 in) thick level ice with a 25-centimetre (9.8 in) snow layer on top at very slow but continuous speed. However, the later twin-screw variants were expected to have slightly lower icebreaking capability.[1]
Icebreakers
General characteristics (97, 97A, 97K, 97E)[1] | |
---|---|
Type: | Icebreaker |
Displacement: | 2,935 t (2,889 long tons) |
Length: | 67.7 m (222 ft) |
Beam: | 18.06 m (59 ft) |
Draught: | 5.35 metres (17.6 ft) |
Installed power: | 3 × 13D100 (3 × 1,800 hp) |
Propulsion: | Diesel-electric; three shafts (2 × 2,500 hp + 1600 hp) |
Speed: | 14 knots (26 km/h; 16 mph) (maximum) |
Range: | 5,500 nautical miles (10,200 km; 6,300 mi) at 12.5 knots (23.2 km/h; 14.4 mph) |
Endurance: | 17 days |
Crew: | 42 |
Armament: |
|
Project 97
Three Project 97 icebreakers were built for the Soviet Navy: Dobrynya Nikitich for the Northern Fleet,[4] Purga for the Baltic Fleet,[5] and Vyuga for the Pacific Fleet.[3] While initially armed with 57 mm and 25 mm deck guns, the vessels were later disarmed.[1]
Name(s) | Namesake(s) | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|
Dobrynya Nikitich (Russian: Добрыня Никитич) | Dobrynya Nikitich | 760 | 20 December 1959 | 10 May 1960 | 31 December 1960 | 1960–1998 | Broken up | [4] | |
Purga (Russian: Пурга) | Russian for "blizzard" | 761 | 31 May 1960 | 10 December 1960 | 23 October 1961 | 1961–2012 | Broken up | [5] | |
Vyuga (Russian: Вьюга) | Russian for "blizzard" | 763 | 5 May 1961 | 20 January 1962 | 16 July 1962 | 1962–1991 | Broken up | [6] | |
Project 97А
The series of unarmed icebreakers built for the Ministry of the Maritime Fleet of the Soviet Union, Project 97A, is the most numerous variant of the Project 97 family with twelve vessels built between 1961 and 1971. While initially named simply Ledokol (Russian: Ледокол, tr. icebreaker) followed by a running number, in 1966 they were given individual names to honor famous Imperial Russian and Soviet polar explorers.[1]
As of 2020, three Project 97A icebreakers remain in service with Rosmorport's North-Western Basin Branch in the Baltic Sea: Ivan Kruzenstern, Yuriy Lisyanskiy, and Semyon Dezhnev.[7][8][9]
Name(s) | Namesake(s) | IMO number | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|---|
Vasiliy Pronchishchev (Russian: Василий Прончищев; 1966–1989)Ledokol-1 (Russian: Ледокол-1; 1961–1966) | Vasili Pronchishchev | 6500765 | 762 | 13 December 1960 | 28 April 1961 | 30 December 1961 | 1961–1989 | Broken up | ![]() |
[10][11] |
Afanasy Nikitin (Russian: Афанасий Никитин; 1966–1995)Ledokol-2 (Russian: Ледокол-2; 1962–1966) | Afanasy Nikitin | 6500791 | 764 | 1 November 1961 | 31 May 1962 | 1 November 1962 | 1962–1995 | Broken up | [12][13] | |
Khariton Laptev (Russian: Харитон Лаптев; 1966–1996)Ledokol-3 (Russian: Ледокол-3; 1962–1966) | Khariton Laptev | 6500806 | 765 | 10 February 1962 | 11 August 1962 | 25 December 1962 | 1962–1996 | Broken up | [14][15] | |
Poyar (Russian: Пояр; 1988)Vasiliy Poyarkov (Russian: Василий Поярков; 1966–1988)Ledokol-4 (Russian: Ледокол-4; 1963–1966) | Vassili Poyarkov | 6500777 | 766 | 13 August 1962 | 16 March 1963 | 26 July 1963 | 1963–1988 | Broken up | [16][17] | |
Yerofey Khabarov (Russian: Ерофей Хабаров; 1966–1993)Ledokol-5 (Russian: Ледокол-5; 1963–1966) | Yerofey Khabarov | 6500789 | 767 | 5 April 1963 | 24 August 1963 | 7 December 1963 | 1963–1993 | Broken up | [18][19] | |
Ivan Kruzenstern (Russian: Иван Крузенштерн; 1966–present)Ledokol-6 (Russian: Ледокол-6; 1964–1966) | Adam Johann von Krusenstern | 6501496 | 768 | 20 January 1964 | 29 April 1964 | 27 October 1964 | 1964–present | In service | ![]() |
[7][20][21] |
Vlad (1988)Vladimir Rusanov (Russian: Владимир Русанов; 1966–1988)Ledokol-7 (Russian: Ледокол-7; 1964–1966) | Vladimir Rusanov | 6508171 | 769 | 30 March 1964 | 25 July 1964 | 28 December 1964 | 1964–1988 | Broken up | [22][23] | |
Semyon Chelyuskin (Russian: Семён Челюскин; 1966–1988)Ledokol-8 (Russian: Ледокол-8; 1965–1966) | Semyon Chelyuskin | 6514522 | 770 | 12 December 1964 | 28 February 1965 | 11 August 1965 | 1965–1988 | Broken up | [24][25] | |
Yuriy Lisyanskiy (Russian: Юрий Лисянский; 1966–present)Ledokol-9 (Russian: Ледокол-9; 1965–1966) | Yuri Lysianskyi | 6521850 | 772 | 30 June 1965 | 31 August 1965 | 30 December 1965 | 1965–present | In service | [8][26] | |
Fyodor Litke (Russian: Фёдор Литке) | Friedrich von Lütke | 7020085 | 780 | 12 January 1970 | 29 July 1970 | 14 December 1970 | 1970–2013 | Broken up | [27][28] | |
Ivan Moskvitin (Russian: Иван Москвитин) | Ivan Moskvitin | 7117383 | 781 | 2 November 1970 | 25 March 1971 | 1 September 1971 | 1971–1997 | Broken up | [29][30] | |
Semyon Dezhnev (Russian: Семён Дежнёв) | Semyon Dezhnev | 7119446 | 782 | 30 March 1971 | 31 August 1971 | 28 December 1971 | 1971–present | In service | [9][31] | |
Project 97K
Two unarmed Project 97A icebreakers built for the Soviet Navy, Ilya Muromets for the Pacific Fleet[32] and Buran for the Baltic Fleet,[33] are sometimes considered as a separate subclass, Project 97K.[1]
As of 2020, Buran remains in service with the Baltic Fleet.[33]
Name(s) | Namesake(s) | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|
Ilya Muromets (Russian: Илья Муромец) | Ilya Muromets | 771 | 10 March 1965 | 30 June 1965 | 28 December 1965 | 1965–1993 | Broken up | ![]() |
[32] |
Buran (Russian: Буран) | Russian for "blizzard" | 773 | 21 January 1966 | 16 May 1966 | 24 October 1966 | 1966–present | In service | ![]() |
[33] |
Project 97E
Project 97E was an unarmed icebreaker variant built for East Germany. The vessel, Stephan Jantzen, was operated by the state-owned shipping company Bagger-, Bugsier- und Bergungsreederei Rostock (BBB) until the German reunification in 1990 and Wasser- und Schifffahrtsamt Stralsund until its decommissioning in 2005.[1]
In 2005, the decommissioned Stephan Jantzen was sold by the German state in an online auction to Beta Mar Limited, a shipping company registered in Greece, for 430,000 euro and renamed Stephan. However, the buyer forfeited the 40,000 euro downpayment and never collected the vessel. In the following years, the vessel changed owners, flags and names several times without ever leaving Rostock while plans to convert the old icebreaker into a luxury yacht were first presented and then abandoned. Finally the vessel, confiscated due to outstanding debts from berth and security fees, was acquired by the City of Rostock in 2018 and returned to the care of the non-profit organization which had looked after it until 2012. After extensive clean-up and renovations, the vessel was opened to the public as a museum ship.[34]
Name(s) | Namesake(s) | IMO number | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|---|
Stephan Jantzen (1967–2005)Stephan (2005–2006)King Ice (2006–2008)Stephan Jantzen (2008–2012)König Ludwig II Von Bayern (2012–2013)Stephan Jantzen (2013–present) | Stephan JantzenLudwig II of Bavaria | 7117486 | 775 | 15 September 1966 | 30 December 1966 | 30 November 1967 | 1967–2005 | Laid up | ![]() |
[35][36] |
Patrol vessels
Project 97AP
General characteristics (97AP)[3] | |
---|---|
Type: | Patrol icebreaker |
Displacement: | 3,414 t (3,360 long tons) (full load) |
Length: | 67.7 m (222 ft) |
Beam: | 18.1 m (59 ft) |
Draught: | 6.3 m (21 ft) |
Installed power: | 3 × 13D100 (3 × 1,800 hp) |
Propulsion: | Diesel-electric; three shafts (2 × 2,500 hp + 1600 hp) |
Speed: | 14 knots (26 km/h; 16 mph) |
Range: | 6,700 nautical miles (12,400 km; 7,700 mi) at 12.5 knots (23.2 km/h; 14.4 mph) |
Endurance: | 17 days |
Crew: | 39 |
Armament: |
|
Project 97AP (Russian: 97АП) was an armed patrol icebreaker variant built for the Soviet Navy. Built with increased autonomy time and operating range, they were intended to patrol the western and eastern ends of the Northern Sea Route. The armament was later dismantled.[1]
As of 2020, Sadko remains in service with the Pacific Fleet[37] while Peresvet, which was previously assigned to the Northern Fleet, has been decommissioned and scrapped.[38][1]
Name(s) | Namesake(s) | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|
Sadko (Russian: Садко) | Sadko | 777 | 20 June 1967 | 28 June 1968 | 6 November 1968 | 1968–present | In service | ![]() |
[37] |
Peresvet (Russian: Пересвет) | Alexander Peresvet | 778 | 10 July 1968 | 29 January 1969 | 28 July 1970 | 1970–2011 | Broken up | [38] | |
Project 97P
General characteristics (97P)[3] | |
---|---|
Type: | Patrol vessel |
Displacement: | 3,525 t (3,469 long tons) (full load) |
Length: | 70 m (230 ft) |
Beam: | 18 m (59 ft) |
Draught: | 6.5 m (21 ft) |
Installed power: | 3 × 13D100 (3 × 1,800 hp) |
Propulsion: | Diesel-electric; two shafts (2 × 2,500 hp) |
Speed: | 15 knots (28 km/h; 17 mph) |
Range: | 10,700 nautical miles (19,800 km; 12,300 mi) at 12.5 knots (23.2 km/h; 14.4 mph) |
Endurance: | 50 days |
Complement: |
|
Sensors and processing systems: |
|
Armament: | |
Aviation facilities: | Helideck for Kamov Ka-25 or Ka-27 |
Project 97P (Russian: 97П) was developed as a response to the renewed interest of the Soviet Navy and Border Troops on icebreaking patrol vessels after United States Coast Guard and Canadian Coast Guard icebreakers began appearing more frequently near the country's northern maritime borders. New icebreaking patrol vessels were needed because existing Soviet naval vessels could not operate in ice-covered waters and large icebreakers, in addition to being unarmed and operated by civilians, could not be distracted from their primary mission of escorting merchant ships.[1]
Project 97 was selected as the design basis following positive operational experience and the difficulties associated with developing a new design. The Project 97P design, developed by Central Design Bureau "Iceberg", was slightly longer than the preceding icebreakers, lacked the damage-prone bow propeller, and featured a bigger deckhouse built of aluminum-magnesium alloy to reduce weight. A helideck capable of receiving a Kamov Ka-25 or Ka-27 helicopter was fitted over the aft deck. The armament consisted of a twin 76 mm AK-726 deck gun and two 30 mm AK-630 close-in weapon systems.[1]
As of 2020, four Project 97P patrol ships remain in service: Ivan Susanin with the Pacific Fleet[39] and Ruslan with the Northern Fleet,[40] both with their armaments removed,[1] and Neva and Volga with the Border Service.[41][42]
Name(s) | Namesake(s) | IMO number | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|---|
Ivan Susanin (Russian: Иван Сусанин) | Ivan Susanin | 02650 | 31 July 1972 | 28 February 1973 | 30 December 1973 | 1973–present | In service | ![]() |
[43] | |
Aysberg (Russian: Айсберг) | Russian for "iceberg" | 02651 | 17 October 1973 | 27 April 1974 | 25 December 1974 | 1974–2006 | Broken up | [39] | ||
Ruslan (Russian: Руслан) | Ruslan | 02652 | 26 December 1973 | 28 May 1974 | 26 September 1975 | 1975–present | In service | [40] | ||
Anadyr (Russian: Анадырь; 1992–2019)Imeni XXV syezda KPSS (Russian: Имени XXV съезда КПСС; 1976–1992)Dnepr (Russian: Днепр; 1976) | Anadyr25th Congress of the CPSUDnepr River | 02653 | 16 July 1975 | 14 February 1976 | 30 September 1976 | 1976–2019 | Broken up | ![]() |
[44] | |
Dunay (Russian: Дунай) | Danube River | 02654 | 24 December 1976 | 5 August 1977 | 31 December 1977 | 1977–2017 | Broken up | [45] | ||
Neva (Russian: Нева) | Neva River | 02655 | 23 November 1977 | 28 July 1978 | 27 December 1978 | 1978–present | In service | [41] | ||
Volga (Russian: Волга) | Volga River | 8640246 | 02656 | 27 February 1979 | 19 April 1980 | 26 December 1980 | 1980–present | In service | ![]() |
[46][42] |
Murmansk (Russian: Мурманск; 1996–2013)Irtysh (Russian: Иртыш; 1992–1996)Imeni XXVI syezda KPSS (Russian: Имени XXVI съезда КПСС; 1981–1992) | MurmanskIrtysh River26th Congress of the CPSU | 02657 | 22 April 1980 | 3 July 1981 | 25 December 1981 | 1981–2013 | Broken up | [47] | ||
Other variants
Project 97D
Project 97D (Russian: 97Д) was a survey vessel variant built for the Ministry of the Maritime Fleet of the Soviet Union to survey the Northern Sea Route. While otherwise nearly identical to baseline Project 97 icebreakers, these two vessels were fitted with additional scientific facilities, echosounders to conduct hydrographic survey, and accommodation for an additional 14 personnel. However, they were also used for icebreaking operations from time to time.[1]
Name(s) | Namesake(s) | IMO number | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|---|
Prabhavi (1997–1998)Pyotr Pakhtusov (Russian: Пётр Пахтусов; 1975–1997)Mendeleev (Russian: Менделеев; 1971–1975)Pyotr Pakhtusov (Russian: Пётр Пахтусов; 1966–1971)Ledokol-10 (Russian: Ледокол-10; 1966) | Pyotr PakhtusovDmitri Mendeleev | 6614358 | 774 | 21 May 1966 | 8 August 1966 | 30 December 1966 | 1966–1998 | Broken up | [48][49] | |
Georgiy Sedov (Russian: Георгий Седов) | Georgiy Sedov | 7117137 | 776 | 3 January 1966 | 15 June 1967 | 30 December 1967 | 1967–1992 | Broken up | [50][51] | |
Project 97B
General characteristics (Project 97B)[3] | |
---|---|
Type: | Hydrographic survey vessel |
Displacement: | 3,450 t (3,400 long tons) |
Length: | 70.1 m (230 ft) |
Beam: | 18.1 m (59 ft) |
Draught: | 6.4 m (21 ft) |
Installed power: | 3 × 13D100 (3 × 1,800 hp) |
Propulsion: | Diesel-electric; two shafts (2 × 2,500 hp) |
Speed: | 14 knots (26 km/h; 16 mph) |
Range: | 13,100 nautical miles (24,300 km; 15,100 mi) at 9.5 knots (17.6 km/h; 10.9 mph) |
Endurance: | 60 days |
Complement: |
|
Armament: | None |
Aviation facilities: | Helideck |
Project 97B (Russian: 97Б) was a hydrographic survey vessel variant built for the Hydrographic Office of the Soviet Navy. Unlike the preceding Project 97D built for civilian service, Project 97B was a more radical departure from the original Project 97 icebreaker design with increased length and displacement to increase range and endurance, as well as an enlarged deckhouse to accommodate more personnel on board.[1] Project 97B was also the first Project 97 variant and the only vessel from the first series built without the bow propeller.[3]
As of 2020, Vladimir Kavrayskiy remains in service with the Northern Fleet as the stationary barracks ship PKZ-86 in Murmansk.[52]
Name(s) | Namesake(s) | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|
PKZ-86 (Russian: ПКЗ-86; 2012–present)Vladimir Kavrayskiy (Russian: Владимир Каврайский; 1965–2012) | Vladimir V. Kavrayskiy | 779 | 25 February 1969 | 31 October 1969 | 31 December 1969 | 1969–present | Used as floating barracks | ![]() |
[52] |
Project 97Н
General characteristics (Project 97H)[1][53] | |
---|---|
Type: | Research vessel |
Displacement: | 3,700 t (3,600 long tons) |
Length: | 73 m (240 ft) |
Beam: | 18.6 m (61 ft) |
Draught: | 6.6 m (22 ft) |
Installed power: | 3 × 13D100 (3 × 1,800 hp) |
Propulsion: | Diesel-electric; two shafts (2 × 2,500 hp) |
Speed: | 15 knots (28 km/h; 17 mph) (maximum) |
Range: | 11,000 nautical miles (20,000 km; 13,000 mi) at economic speed |
Endurance: | 55 days |
Crew: |
|
Project 97H, the final variant developed based on the Project 97 icebreaker design, was a research vessel commissioned by the State Committee for Hydrometeorology and Environmental Control of the Soviet Union to conduct scientific research in the poorly-studied transition zone between open water and the polar ice pack. In addition to adding extensive scientific facilities and additional accommodation space, the hull lines were given more pronounced sheer and flare to reduce the likelihood of waves breaking over the bow. The problematic rolling behavior was also addressed by increasing the rolling period from 7 to 9–10 seconds with design modifications and introducing a passive roll-reduction tank.[1]
The only Project 97H ship, Otto Schmidt, entered service in 1979. In 1991, shortly after completing its 40th scientific voyage, the vessel was laid up in Murmansk due to lack of funding. Five years later, Otto Schmidt was sold to a private company and sailed to Alang, India, for scrapping.[1]
Name(s) | Namesake(s) | IMO number | Yard number | Laid down | Launched | Completed | In service | Status or fate | Image | Ref |
---|---|---|---|---|---|---|---|---|---|---|
Otto Schmidt (Russian: Отто Шмидт) | Otto Schmidt | 7828671 | 02783 | 27 December 1977 | 27 December 1978 | 31 August 1979 | 1979–1991 | Broken up | ![]() |
[53][54] |
References
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