MV Tricolor

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Career
Name: Nosac Sun
Builder: Tsuneishi Shipbuilding Co. Ltd, Japan
Yard number: 589
Launched: March 3, 1987
Identification: IMO Number 8600181
Fate: sold
Career (Norway) Norwegian Merchant Navy Ensign
Name: Tricolor
Owner: Capital Bank, Scotland
Acquired: 1996
Fate: sank following collision
General characteristics
Class & type: Single screw PCTC (Pure Car Truck Carrier)
Tonnage: 49,792 GT
Length: 190 m (620 ft)
Beam: 32.2 m (106 ft)
Draught: 9.12 m (29.9 ft)

MV Tricolor was a 50,000 tonne Norwegian-flagged vehicle carrier built in 1987, notable for having been involved in three English Channel collisions within a fortnight.

History[edit]

MV Tricolor was originally launched in 1987 as Nosac Sun.[1] At the time of her collision with Kariba she was operated by Wilh. Wilhelmsen.[2]

Collision and sinking, December 14, 2002[edit]

During the early hours of December 14, 2002, while traveling from Zeebrugge, Belgium to Southampton, U.K., with a load of nearly 3,000 automobiles, she collided with Kariba, a 1982 Bahamian-flagged container ship. Kariba was able to continue on, but Tricolor sank where she was struck, some 17 nautical miles (20 mi) north of the French coast within the French Exclusive economic zone in the English Channel.[2] While no lives were lost, the ship remained lodged on her side in the mud of the 30 metres (98 ft) deep waterway. A third vessel, MV Clary was alleged to have contributed to the collision in subsequent litigation as having caused an "embarrassment of navigation".[3]

Danger to shipping[edit]

Because of the location of the sunken vessel, at a point where two lanes combine in the Traffic Separation Scheme (TSS) of the English Channel/Southern part of the North Sea and the fact that she was just completely submerged under water, the wreck was considered as a hazard to navigation. The TSS at that location is one of the busiest shipping-lanes in the world. In December 2002 French authorities ordered the wreck to be removed, as it was perceived to represent a danger to shipping and the environment. Declaring the vessel a hazard to navigation was an understatement as two more collisions happened with MV Tricolor in the days after the sinking:[2]

Following the sinking and due to the location in a busy point of a shipping lane (the location was on the edge of a turning-point within the Traffic Separation Scheme or TSS of the English Channel) the wreck was initially guarded by the French police vessel Glaive and HMS Anglesey in addition to two salvage vessels and three wreck buoys.[4]

The Channel is one of the busiest seaways in the world and, despite standard radio warnings, three guard ships, and a lighted buoy, the Dutch vessel Nicola struck the wreck the next night, and had to be towed free. After this, two additional patrol ships and six more buoys were installed, including one with a Racon warning transponder. However, on 1 January 2003 the loaded Turkish-registered fuel carrier Vicky struck the same wreck; she was later freed by the rising tide.

Salvage[edit]

The salvage operation of MV Tricolor was done by a consortium of companies under the name Combinatie Berging Tricolor (Combination for salvaging Tricolor) that was led by the Dutch company Smit International, and took well over a year. The consortium consisted of Smit Salvage BV, Scaldis Salvage & Marine Contractors NV, URS Salvage & Marine Contracting NV and Multraship Salvage BV. The contract for the wreck-removal with this consortium was signed on 11 April 2003.[2]

Starting in July 2003, the operation was declared complete on October 27, 2004. The salvage method included a carbide-encrusted cutting wire used to slice the wreck into nine sections of 3000-tonnes each. This technique was similar to one Smit had used in salvaging the Russian submarine, K-141 Kursk.[5]

C.T. Systems, together with Thales Navigation, handled the navigational aspects of the operation. The positioning equipment provided the required locational accuracy and after using a side scan sonar, the debris had been located and all the relevant positional information converted to a chart, enabling a systematic search and recovery of the remaining debris.

The cargo of 2,871 new cars – mostly from premium German and Swedish manufacturers including BMW, Volvo and SAAB – was removed from the wreck and recycled for the metal component. Most oil was removed from the ship's tanks soon after it sank, but during the salvage there was a small 540-tonne oil spill, sparking concern.

See also[edit]

  • Baltic Ace, another car carrier that sank in the North Sea in 2012.

References[edit]

  1. ^ "SP Shipbase - Tricolor". 28 December 2005. Retrieved 14 November 2009. 
  2. ^ a b c d "Tricolor wreck-removal contract signed today" (Press release). Wilh. Wilhelmsen Group. 11 April 2003. Retrieved 12 February 2012. 
  3. ^ "In re Otal Investments - m/v "Kariba"". 8 July 2005. Retrieved 15 November 2009. [dead link]
  4. ^ "Hansard Volume 642 cc782-4 782". 19 December 2002. Retrieved 13 September 2009. 
  5. ^ "Summary of project MV Tricolo". Smit International. Retrieved 12 February 2012. 

External links[edit]

Coordinates: 51°22′00″N 2°12′07″E / 51.36667°N 2.20194°E / 51.36667; 2.20194