History
NameMangystau-2
Owner
OperatorCaspian Offshore Construction (2010–2021)[2]
Port of registry
OrderedApril 2009
BuilderSTX Europe Braila shipyard, Romania
Yard number741[3]
Laid down25 June 2010[3]
Completed11 October 2010[3]
In service2010–2021
FateSold to Canada in 2021
Canada
NameCCGS Judy LaMarsh
NamesakeJudy LaMarsh
OwnerCanadian Coast Guard
Port of registryOttawa, Ontario
Acquired2021
In service2023–present
Refit2022
Identification
StatusIn service
General characteristics (as built)[4]
TypeShallow-draught icebreaking tug
Tonnage
Length66.3 m (217 ft 6 in)[3]
Beam16.4 m (53 ft 10 in)
Draught2.5–3.0 m (8 ft 2 in – 9 ft 10 in)
Depth4.4 m (14 ft 5 in)
Ice classIn excess of 1A Super
Installed power4 × Caterpillar 3512C (4 × 1,790 kW)
Propulsion
Speed12 knots (22 km/h; 14 mph)[3]
Capacity300 tonnes of deck cargo
Crew
  • 12 crew
  • 10 supernumeraries[5]
General characteristics (after refit)
TypeLight icebreaker (CCG)
NotesOtherwise same as above

CCGS Judy LaMarsh is a Canadian Coast Guard light icebreaker. Built in 2010 as a shallow-draught icebreaking tug Mangystau-2 for the Caspian Sea oil fields, the vessel was acquired by Canada as an interim solution while the existing fleet undergoes service life extension and maintenance.

In addition to CCGS Judy LaMarsh, the Canadian Coast Guard operates four other icebreakers converted from commercial icebreaking offshore vessels: CCGS Terry Fox, CCGS Captain Molly Kool, CCGS Jean Goodwill and CCGS Vincent Massey.

Design

CCGS Judy LaMarsh is 66.3 metres (217 ft 6 in) long overall and 61.87 metres (203 ft 0 in) between perpendiculars,[3] and has a beam of 16.4 metres (53 ft 10 in). The operational draught of the shallow-draught vessel is between 2.5 and 3.0 metres (8 ft 2 in and 9 ft 10 in). While officially assigned the highest Finnish-Swedish ice class, the hull is strengthened beyond the minimum requirements for ice class 1A Super.[4][6]

CCGS Judy LaMarsh has a diesel-electric propulsion system with four twelve-cylinder Caterpillar 3512C high-speed diesel generators rated at 1,790 kilowatts (2,400 hp) each. The vessel is propelled by three 1.6 MW (2,100 hp) Schottel SRP 2020 azimuth thrusters in the stern and two 550 kW (740 hp) pump-jet bow thrusters in the bow.[7] The bollard pull of the vessel is over 50 tonnes-force (490 kN; 49 LTf; 55 STf).[4]

During full-scale icebreaking trials in the Caspian Sea, a sister vessel of CCGS Judy LaMarsh could achieve a speed of 6.5–7 knots (12.0–13.0 km/h; 7.5–8.1 mph) in 45–50-centimetre-thick (18–20 in) level ice and 7.5–8 knots (13.9–14.8 km/h; 8.6–9.2 mph) in 35-centimetre (14 in) ice.[7]

Construction

In April 2009, Kazakhstan-based marine service company JSC "Circle Maritime Invest" signed a NOK750 million (about US$112 million) shipbuilding contract with STX Norway Offshore, a subsidiary of STX Europe, for the construction of three icebreaking tugs for its operating subsidiary, Caspian Offshore Construction.[8][9] A NOK450 million (about US$71.3 million) follow-up order of two additional vessels was signed in August 2010.[10][11] The Finnish engineering company Aker Arctic, which had been developing the Aker ARC 104 shallow-draught icebreaking tug concept since 2006,[6] was contracted by the shipyard to develop the final technical design.[12]

Mangystau-2, the second vessel of the series, was laid down at STX Braila shipyard in Romania on 25 June 2010 and delivered on 11 October of the same year, two months after the lead ship. The other three vessels were delivered in 2011.[3]

Career

Mangystau-2 (2010–2021)

The five Mangystau-class icebreaking tugs were built to support the development, construction and operation of the Kashagan Field in the seasonally-freezing northern Caspian Sea where the water depth can be as low as 3 metres (9.8 ft).[6][13] In addition to towing and pushing supply barges, the vessels could carry out ice management around the artificial island as well as remain on standby for firefighting, oil spill cleanup operations, and evacuation of up to 300 people in the event of blowout involving hydrogen sulphide.[4]

Originally registered in Aktau and flying the Kazakh flag since 2010, Mangystay-2 was reflagged to Turkmenistan in 2020.[2] In 2021, prior to its transfer to Canada, the vessel was acquired by the Canadian company Atlantic Towing Limited.[14]

CCGS Judy LaMarsh (2021–present)

In February 2019, the Public Services and Procurement Canada released a request for information (RFI) regarding the acquisition of a commercial icebreaking vessel and converting it to a light icebreaker for the Canadian Coast Guard. A second RFI was released in December 2019, followed by two requests for proposal (RFP) in March 2020 and September 2020.[15] Among other things, the final technical requirements called for a vessel not more than 25 years old (as of 1 April 2020) capable of breaking 60-centimetre (24 in) first-year level ice at a speed of at least 3 knots (5.6 km/h; 3.5 mph).[16]

In November 2021, the Canadian Coast Guard announced that it had acquired Mangystau-2 from Atlantic Towing Limited for C$46.2 million (US$36.6 million).[14] After leaving the Caspian Sea and sailing across the Atlantic Ocean, the vessel arrived in Canada on 29 December 2021.[17]

In July 2022, the Canadian Coast Guard issued a request for proposal for a one-month dockside refit of Mangystau-2 prior to the vessel's entry to Canadian service. The work awarded to Canadian Maritime Engineering included for example modifications to the vessel's potable water system, removal of all external firefighting equipment, and thorough cleaning of the ventilation ducting.[18]

On 3 October 2022, the Canadian Coast Guard named the new interim light icebreaker CCGS Judy LaMarsh after the Canadian politician, lawyer, author and broadcaster Judy LaMarsh (1924–1980).[19]

In January 2023, CCGS Judy LaMarsh sailed up the Welland Canal and docked in Port Colborne before commencing icebreaking operations.[20]

References

  1. ↑ "Canadian Coast Guard announces an addition to the southern icebreaking fleet with the purchase of light icebreaker from Atlantic Towing Limited". Government of Canada. 10 November 2021. Retrieved 29 November 2022.
  2. 1 2 3 4 5 "Judy LaMarsh (9560120)". Equasis. French Ministry for Transport. Retrieved 29 November 2022.
  3. 1 2 3 4 5 6 7 8 "Judy LaMarsh (9560120)". Sea-web. Retrieved 4 January 2023.
  4. 1 2 3 4 "Canadian Coast Guard buys light icebreaker for Great Lakes; vessel currently in Turkmenistan". St. Catharines Standard. 14 November 2021. Retrieved 29 November 2022.
  5. ↑ "First AARC designed Caspian Icebreaker Tug delivered" (PDF), Arctic Passion News, Aker Arctic, no. 2, p. 8, 2010
  6. 1 2 3 "New icebreakers for the Caspian Sea" (PDF), Arctic Passion News, Aker Arctic, no. 1, p. 4, 2010
  7. 1 2 "Ice performance verified in the Caspian Sea" (PDF), Arctic Passion News, Aker Arctic, no. 2, pp. 6–7, 2012
  8. ↑ "STX Europe wins shipbuilding order". Reuters. 17 April 2009. Retrieved 30 November 2022.
  9. ↑ "Norwegian yard wins $110million contract". Energy Voice. 4 May 2009. Retrieved 30 November 2022.
  10. ↑ "JSC boosts STX tug tally". TradeWinds. 24 August 2010. Retrieved 4 January 2023.
  11. ↑ "STX Norway Offshore to Build Two Icebreaker Tugs to JSC Circle Marine Invest for $71 Million". Offshore Energy. 26 August 2010. Retrieved 4 January 2023.
  12. ↑ "Aker Arctic to design Caspian icebreaker tugs". Offshore. 6 July 2009. Retrieved 30 November 2022.
  13. ↑ "Shallow water icebreaker required bespoke solution". Riviera Maritime Media. 19 November 2010. Retrieved 29 November 2022.
  14. 1 2 "Canadian Coast Guard Acquires Commercial Light Icebreaker". The Maritime Executive. 12 November 2021. Retrieved 4 January 2023.
  15. ↑ "Light Icebreaker Fairness Monitor Final Report". Public Services and Procurement Canada. Retrieved 29 November 2022.
  16. ↑ "Light Icebreaker". CanadaBuys. 18 September 2020. Retrieved 4 January 2023.
  17. ↑ @sopelza (January 6, 2022). "The newest Canadian Coast Guard vessel MANGYSTAU 2 has arrived in Canada. The vessel has docked in Come by Chance, Newfoundland December 29th / 2021. The MANGYSTAU 2 will undergo refit before entering the Canadian Coast Guard fleet" (Tweet) – via Twitter.
  18. ↑ "Mangystau 2 Dockside refit 2022". CanadaBuys. 26 July 2022. Retrieved 4 January 2023.
  19. ↑ "Canadian Coast Guard names light icebreaker – the CCGS Judy LaMarsh". Government of Canada. Canadian Coast Guard. 3 October 2022. Retrieved 4 January 2023.
  20. ↑ "Canada's newest icebreaker docks in Port Colborne; Welland Canal closing delayed". Toronto Star. 3 January 2023. Retrieved 4 January 2023.
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