MV Tønsberg

Tønsberg in the port of Bruges-Zeebrugge
History
Name: Tønsberg
Namesake: Tønsberg
Owner: Wilh. Wilhelmsen
Port of registry: Valletta, Malta[1]
Builder: Mitsubishi Heavy Industries, Nagasaki, Japan[2]
Launched: 2011[1]
Identification:
General characteristics
Class and type: Mark V[2]
Type: roll-on/roll-off
Tonnage:
Length: 265 metres (869 ft)[2]
Beam: 32.27 metres (105.9 ft)[1]
Decks: Six fixed decks; three hoistable decks[2]
Installed power: 7-cylinder MAN B&W engine[3] providing 20,100 kilowatts (27,000 hp)
Propulsion: 7.3m diameter 6-bladed propeller; two 2,500-kW Kawasaki thrusters (one stern, one bow)
Speed: 20.25 knots (37.50 km/h; 23.30 mph)[4]
Capacity:
  • 138,000 cubic metres (4,900,000 cu ft)[2]
  • 5,990 TEU[4]

MV Tønsberg is a roll-on/roll-off ship owned by Wilh. Wilhelmsen. As of 2012 it is the largest RORO ship in the world.[5]

Specification

  • Dimensions: MV Tønsberg is 265m length overall and 32.26m wide, and has 11m draught and 46m of airdraught. Gross tonnage is 76,500 gt. Capacity is 5% - 7% higher than Mark IV roro ships.
  • Decks: Six fixed decks and three hoistable ones (4B, 6 and 8, lifted by electric winches). The main deck can take loads 7.1m high - more than other vessels - allowing very large loads. The total deck space is 50,335 m² and cargo volume is 138,000 m³. Internal ramps are 8 metres wide; The weather deck (which can be used for outsize or unusual loads, such as wind turbine blades) also has a 4m wide ramp from below, to reduce the need for cranes.[6]
  • Stern ramp: The stern ramp is 12m wide and can take loads of 505 tonnes.
  • Design: Hull form has been improved, so compared to previous ships it will use 15 - 20% less fuel per unit of cargo.[2] Stability has been improved, to reduce the need for ballast water. There is a double bottom and Deck 5 is also watertight.
  • Propulsion: 7-cylinder MAN B&W engine, which has been derated from 22,890 kW[3] to 20,100 kW MCR at 108rpm; (although normal output in service is 18,090 kW), driving a 7.3m diameter 6-bladed propeller; plus two 2,500 kW Kawasaki thrusters (one each at the bow and the stern). Service speed is 20.25 knots.[7]

History

MV Tønsberg is the fourth Wilhelmsen ship to carry this name; it's named after the Norwegian coastal town where Wilhelmsen was founded in 1861.[8] It was built to celebrate the 150th anniversary of Wilh. Wilhelmsen line. It is the first in a series of four "Mark V" ships, built in 2010-2011 by Mitsubishi Heavy Industries shipyard in Nagasaki, in Japan.[7] The second ship of the class, Parsifal, was delivered in September 2011.[9]

In June 2012, Tønsberg was awarded "Ship of the Year 2011" by the Japan Society of Naval Architects and Ocean Engineers, recognising its efficiency and environmental compatibility.[10]

References

  1. 1 2 3 4 5 6 7 8 "TONSBERG". Marine Traffic. Retrieved 7 April 2016.
  2. 1 2 3 4 5 6 "Wilh. Wilhelmsen launches next generation cargo vessel". Wilhelmsen press release. Archived from the original on 7 May 2012. Retrieved 1 July 2012.
  3. 1 2 "MAN B&W L70ME-C8-TII Project Guide" (PDF). MAN. Retrieved 31 July 2012.
  4. 1 2 "Tønsberg". www.wilhelmsenasa.com. Retrieved 7 April 2016.
  5. ↑ "Wilhelmsen launches largest ro-ro ship". Logistics Manager. Archived from the original on 27 January 2013. Retrieved 1 July 2012.
  6. ↑ "Wilh. Wilhelmsen launches next generation ro-ro ship". Heavy Lift & project Forwarding International. Archived from the original on 25 January 2013. Retrieved 1 July 2012.
  7. 1 2 "Wilhelmsen new ro-ro is biggest ever". The Motorship. 28 May 2011. Archived from the original on 2 July 2012. Retrieved 1 July 2012.
  8. ↑ "Utsatt dåp for verdens største RoRo skip". skips-revyen. 17 March 2011. Archived from the original on 24 June 2012. Retrieved 1 July 2012.
  9. ↑ "Parsifal hits new notes for heavy lift". Heavy Lift & project Forwarding International. Archived from the original on 25 January 2013. Retrieved 1 July 2012.
  10. ↑ "TØNSBERG, MHI's Massive RO/RO Vessel, Awarded "Ship of the Year　2011": High Transport Efficiency and Environmental Compatibility Recognized". Mitsubishi Heavy Industries. Archived from the original on 17 June 2012. Retrieved 1 July 2012.

Further reading

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