The Dutch ship engineering company Royal Boskalis Westminster will use the world’s largest semi-submersible heavy transport ship as a "floating dock" facility. Completed the maintenance of the main propulsion system of the Carnival Vista luxury cruise ship.
In this process, the "Carnival Vista" will be lifted from the water and placed on the semi-submersible heavy transport ship "Boka Vanguard". This work will be carried out in the Bahamas Freeport in the next few weeks. This is the first work in the world to use a heavy transport ship as a floating dock.
After that, the "Boka Vanguard" will transport the "Carnival Vista" to GRand Bahama Shipyard, repaired two Azipod propulsion units as the main propulsion system. During the maintenance process, the "Carnival Vista" will remain on top of the "Boka Vanguard".
The "Carnival Vista" is the second largest cruise ship in Carnival Cruise Line's fleet, with a length of over 300 meters and a capacity of nearly 4,000 passengers. Boskalis explained that the decision to use the "Boka Vanguard" as a floating dock to assist in the maintenance of the "Carnival Vista" was because there are currently no other such equipment available in the area. In addition, the maximum speed of this semi-submersible ship when carrying cargo can reach 13 knots, so it is about 3 times faster than towing.
Executive Deputy of Carnival Cruise Ship Operations President Lars Ljoen said: "Boskalis made this groundbreaking procedure possible. This groundbreaking method can ensure that the repair work of the Carnival Vista can be completed in a safe, timely and effective manner, so that the ship can be Operations will resume later this month. "
The "Boka Vanguard" is expected to arrive in the waters of the Bahamas on July 5, preparing for the arrival of the "Carnival Vista" on July 12. Loading, transportation and maintenance are expected to cost In two weeks, "Carnival VistThe "a" will be able to return to Galveston in time to catch up with the voyage that began on July 27 and continue the 7-day Caribbean annual route.
According to our understanding, "Boka Vanguard" The original name was "DockwiseVanguar"D" was built by Hyundai Heavy Industries of Korea. It was completed and delivered in February 2013. The widening and modification project was completed in July 2016 at Dalian COSCO Shipyard. The ship is 275 meters long, 70 meters wide, 15.5 meters deep, and 11 10,000 tons, a speed of 14 knots, and a construction cost of about 240 million US dollars.
Because the ship has no bow and poop, it uses a full deck, and the superstructure adopts a design similar to an aircraft carrier island, so it can be transported "unlimited" length The cargo. Its deck cabin is mainly located outside of its hull, so it can transport 70-meter-wide cargo. For this, the "Boka Vanguard" won the 2012 "Red Dot" New Technology Award from Offshore Technology Conference (OTC).
Boskalis purchased this ship from Dockwise in 2013, after renaming and subsequent productsBrand promotion, "Boka Vanguard" began to provide integrated services for the field of offshore energy, mainly used to transport offshore oil drilling platforms, bridge cranes, barges, ships, dredgers and other super-large cargo and marine engineering equipment.
In May last year, the "Boka Vanguard" carried CNOOC Engineering's self-built and integrated world's largest floating production, storage and offloading (FPSO) P67, left Qingdao for Brazil. This is the first time that my country has carried out dry-tow ocean transportation of 350,000-ton FPSO, with the highest carrying weight and distance in the world.