Yevpaty Kolovrat (icebreaker)

Yevpaty Kolovrat (Russian: Евпатий Коловрат) is a Russian icebreaker under construction at Almaz Shipbuilding Company for the Russian Navy. The vessel is scheduled to enter service in 2022.

3D rendering of Yevpaty Kolovrat
History
Russia
Name: Yevpaty Kolovrat (Евпатий Коловрат)
Namesake: Evpaty Kolovrat
Owner: Russian Navy
Ordered: 2017[1]
Builder: Almaz Shipbuilding Company (Saint Petersburg, Russia)[1]
Cost: RUB 5–6 billion[1]
Yard number: 800[2]
Laid down: 12 December 2018[3]
Launched: 24 November 2020[4]
Commissioned: 2022 (planned)[5]
Identification: IMO number: 4750627
Status: Under construction
General characteristics [6]
Type: Icebreaker
Displacement: 4,080 t (4,020 long tons)
Length: 82 m (269 ft)
Beam: 19 m (62 ft)
Draught: 4.6 m (15 ft)
Ice class: RMRS Icebreaker6
Installed power: Three diesel generators (3 × 3.5 MW)[7]
Propulsion: Diesel-electric; two azimuth thrusters and one fixed shaft line
Speed:
  • 14 knots (26 km/h; 16 mph)
  • 2 knots (3.7 km/h; 2.3 mph) in 1 m (3.3 ft) ice[8]
Range: 7,600 nautical miles (14,100 km; 8,700 mi)
Endurance: 1 month[9]
Complement: 28
Aviation facilities: Helideck

Development and construction

In the mid-2010s, the Ministry of Defence of the Russian Federation announced that a fleet of new auxiliary icebreakers would be built for the Russian Navy as part of the ongoing fleet renewal program to replace Soviet-era vessels.[10] However, the initial plans for the construction of four 6,000-tonne (5,900-long-ton) Project 21180 icebreakers was revised after the lead ship, Ilya Muromets, turned out to be too expensive. As a response to this, Vympel Design Bureau developed a revised design, 21180M, with about two thirds of the displacement and more limited functionality compared to the bigger vessel.[1][11]

The construction of the Project 21180M icebreaker, estimated to cost between 5 and 6 billion rubles, was awarded to the Saint Petersburg-based Almaz Shipbuilding Company in 2017[1] and the keel of the vessel was laid on 12 December 2018.[3] The hull of Yevpaty Kolovrat, named after the 13th century bogatyr described in The Tale of the Destruction of Ryazan, was launched on 24 November 2020[4] and the icebreaker is scheduled to join the Russian Navy in 2022.[5]

Design

The 4,080-tonne (4,020-long-ton) Yevpaty Kolovrat will be 82 metres (269 ft) long overall, have a beam of 19 metres (62 ft), and draw 4.6 metres (15 ft) of water.[6] The icebreaker will be served by a crew of 28.[6]

Yevpaty Kolovrat will feature a diesel-electric power plant with three 3.5-megawatt (4,700 hp) diesel generators that provide electricity for both propulsion motors and auxiliary systems.[7] The icebreaker will be propelled by three stainless steel monoblock propellers,[12] two driven by Steerprop azimuth thrusters and the third by a fixed shaft line.[13] azimuth thruster and a third propeller driven by a fixed shaft line. In addition, the vessel will have a 700 kW (940 hp) bow thruster.[8]

Yevpaty Kolovrat will be classified by the Russian Maritime Register of Shipping with ice class Icebreaker6[12] which requires the vessel to be capable of operating in level ice with a thickness of 1 metre (3.3 ft) in a continuous motion and her hull strengthened for navigation in non-Arctic waters where ice can be up to 1.5 metres (5 ft) thick.[14] The vessel's speed in open water will be 14 knots (26 km/h; 16 mph) and range 7,600 nautical miles (14,100 km; 8,700 mi).[6]

References
  1. "Ледоколы дошли до "Алмаза"" (in Russian). Kommersant. 13 April 2017. Retrieved 22 November 2020.
  2. "Евпатий Коловрат". FleetPhoto (in Russian). Retrieved 22 November 2020.
  3. "Almaz shipyard lays down icebreaker of Project 21180М, Yevpaty Kolovrat, for RF Navy". PortNews. 12 December 2018. Retrieved 22 November 2020.
  4. "Евпатий Коловрат". Fleetphoto (in Russian). Retrieved 28 December 2020.
  5. "Russian Navy to get latest icebreaker in 2022". TASS. 6 November 2020. Retrieved 22 November 2020.
  6. "Shipbuilders lay down icebreaker for Russian Navy". TASS. 12 December 2018. Retrieved 22 November 2020.
  7. "«Русэлпром» оснастит ледокол «Евпатий Коловрат» комплектом головных дизель-генераторов" (in Russian). PortNews. 12 January 2019. Retrieved 22 November 2020.
  8. "Интервью с Михаилом Бахровым: Ледоколы проекта 21180 могут заинтересовать Индию в качестве НИС" (in Russian). Российский судостроительный портал. 13 February 2019. Retrieved 22 November 2020.
  9. "На Санкт-Петербургском предприятии "Алмаз" состоялся вывод из эллинга корпуса ледокола "Евпатий Коловрат"" (in Russian). Ministry of Defence of the Russian Federation. 22 November 2020. Retrieved 22 November 2020.
  10. "Минобороны России закупит перспективные корабли и подводные лодки для Военно-Морского Флота" (in Russian). Ministry of Defence of the Russian Federation. 25 March 2014. Retrieved 22 November 2020.
  11. "12 тысяч миль льда за 60 суток. Военные ледоколы 5-го поколения будут патрулировать Арктику" (in Russian). TV Zvezda. 4 April 2015. Retrieved 22 November 2020.
  12. "ЦС «Звёздочка» отправил заказчику винты для ледокола 21180М «Евпатий Коловрат»" (in Russian). PortNews. 25 August 2020. Retrieved 22 November 2020.
  13. "Составят ли российские ВРК конкуренцию AZIPOD и прочим PODам?" (in Russian). Korabel.ru. 2 June 2020. Retrieved 22 November 2020.
  14. Rules for the Classification and Construction of Sea-Going Ships Part I: Classification, Russian Maritime Register of Shipping, 2020
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