RollDock-S-Class
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The RollDock S or ST class is a heavy lift / dock ship class comprising five ships . The lead ship, the Rolldock Sun , was built 18 months late in 2010 at the Indian shipyard Larsen & Toubro . The ships are the first ships of the RollDock shipping company. They are among the most powerful and modern ships of their kind.
history
After RollDock had completed the preliminary development of the ships in-house, a four-ship construction contract with the option for a further four ships was agreed with the Larsen & Toubro shipyard in Hazira in 2006 . Due to delays in construction, RollDock canceled the orders for the third and fourth ship of the first lot and waived the use of the four options. By December 2011, two of the ships ordered in 2006, the RollDock Sun and the RollDock Sea , were in service. Instead, two units in an improved and larger modification than the ST class were ordered from the Flensburger Schiffbau-Gesellschaft . The RollDock Star was completed in December 2013, the RollDock Storm followed in June 2014. After Larsen & Toubro had completed the third ship it had begun in 2016 on their own account, RollDock finally took it over - also to rule out a takeover by competitors.
Technical specifications
The ship class combines various properties of different types of heavy lifters. With its two 350 t cranes (combined SWL 700 t) it can load and unload cargo conventionally ( lift on / lift off procedure ). The ship class also has an adjustable stern ramp that can be loaded with a maximum of 4000 t ( roll on / roll off process ). In addition, the ship can lower itself and thus take up floating cargo up to a maximum of 7000 t ( float in / float out procedure ).
With a maximum draft of 5.67 m, the ships have a load capacity of 8,000 dwt (S-class) or 9,000 dwt (ST-class). However, the draft in the submerged state is up to 12.40 m, then the hold has a water-filled depth of 6.50 m. The approximately 116 meters (S-Class) or approximately 119 meters (ST-Class) long loading space can be loaded with up to 17,000 m³ (S-Class) or 18,768 m³ (ST-Class) bulk goods. The maximum load on the tank top is 12 t / m². The Liebherr - Cranes come in a radius of up to 18 meters with a lifting capacity of 350 t (700 combines t). With a delivery of up to 33 meters, 200 t can still be lifted.
As with all dock ships, the superstructures are attached to the front. This has several advantages: On the one hand, visibility is not restricted when there is a high load (see also line of sight ), and on the other hand, the load is not exposed to any sea hammer. In addition, only the rear flap and thus the RoRo or FliFlo process is possible.
The type of ship is powered by two 4,500 per kW strong diesel engine driven. The 9,000 kW accelerate the ships fully loaded to a maximum of 18 and 17 knots via two controllable pitch propellers . The ships are classified with ice class E2 (up to 0.8 meters average ice thickness) by Germanischer Lloyd .
Ships
Ship name | Shipyard / construction number | IMO number | Keel laying, launching, delivery |
Client | Renaming and whereabouts |
---|---|---|---|---|---|
RollDock Sun | Larsen & Toubro / 81001 | 9393981 | January 25, 2007 September 16, 2008 January 8, 2010 |
RollDock NB 1 BV | so in motion |
RollDock Sea | Larsen & Toubro / 81002 | 9404704 | March 26, 2007 April 17, 2010 May 20, 2011 |
RollDock NB 2 BV | so in motion |
RollDock Star | Flensburg shipbuilding company / 758 | 9656498 | June 3, 2013 August 30, 2013 December 18, 2013 |
RollDock NB 4 BV | so in motion |
RollDock Storm | Flensburg shipbuilding company / 759 | 9656503 | August 15, 2013 January 31, 2014 June 11, 2014 |
RollDock NB 5 BV | so in motion |
RollDock Sky | Larsen & Toubro / 81003 | 9404716 | February 16, 2008 February 20, 2015 March 16, 2016 |
RollDock NB 3 BV | so in motion |
The ships fly the Dutch flag with home port Rotterdam .
Web links
Individual evidence
- ↑ "RollDock Sea" put into service. ( Memento of the original from February 21, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , THB - Daily Port Report , June 16, 2011.
- ↑ a b Rolldock: “We do not compete with BigLift or Jumbo Shipping” , Project Cargo Journal. Retrieved March 11, 2020.
- ↑ Revised delivery schedule for RollDock newbuilds , Heavy List & Project Forwarding International. Retrieved July 31, 2014.
- ^ ST-Class , Roll Group. Retrieved July 31, 2014.
- ↑ Paul Schaap: Rolldock scraps orders in India en gaat verder met Duitse FSG-werf , Schuttevaer. Retrieved July 31, 2014.
- ↑ Rolldock opts to book Germany over India , TradeWinds, March 16, 2012.
- ↑ Solutions in heavy lift transport. ( Memento of August 6, 2010 in the Internet Archive ) Brochure from RollDock
- ↑ Data from RollDock Sun ( memento from January 15, 2013 in the web archive archive.today ) Scheepvaartwest
- ↑ Technical specifications of the “S” class ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , RollDock
- ↑ DNV GL: Rolldock Star. Retrieved October 20, 2016 .
- ↑ DNV GL: Rolldock Storm. Retrieved October 20, 2016 .