RollDock-S-Class

RollDock S / ST class

Ship data Ship type Semi-submersible heavy lift carrier Shipyard Larsen & Toubro , Hazira Flensburger Schiffbau-Gesellschaft , Flensburg Units built 5

Ship dimensions and crew length 142.30 m ( Lüa ) width 24.00 m Draft Max. 5.67 m measurement 12,802 GT / 3,841 NRZ   crew 25th

Different data - ST class length 151.50 m width 25.40 measurement 15,382 GT

Machine system machine 2 × diesel engine (Wärtsilä W9L32) Machine performance 9,000 kW (12,237 hp) Top speed 18.0 kn (33 km / h) propeller 2 × controllable pitch propellers

Different data - ST class machine 2 × diesel engine (MAK 9M32) Top speed 17.0 kn (31 km / h)

Transport capacities Load capacity 8,000 dw Volume 17,000 m³

Different data - ST class Load capacity 9,000 dw Volume 18,768 m³

Others Classifications Germanic Lloyd

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

• Ship information on the RollDock website

Individual evidence

1. ↑ "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.
2. ↑ ^{a b} Rolldock: “We do not compete with BigLift or Jumbo Shipping” , Project Cargo Journal. Retrieved March 11, 2020.
3. ↑ Revised delivery schedule for RollDock newbuilds , Heavy List & Project Forwarding International. Retrieved July 31, 2014.
4. ^ ST-Class , Roll Group. Retrieved July 31, 2014.
5. ↑ Paul Schaap: Rolldock scraps orders in India en gaat verder met Duitse FSG-werf , Schuttevaer. Retrieved July 31, 2014.
6. ↑ Rolldock opts to book Germany over India , TradeWinds, March 16, 2012.
7. ↑ Solutions in heavy lift transport. ( Memento of August 6, 2010 in the Internet Archive ) Brochure from RollDock
8. ↑ Data from RollDock Sun ( memento from January 15, 2013 in the web archive archive.today ) Scheepvaartwest
9. ↑ 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
10. ↑ DNV GL: Rolldock Star. Retrieved October 20, 2016 . 
11. ↑ DNV GL: Rolldock Storm. Retrieved October 20, 2016 .