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NUMMER 11 I 21 JUNI


Concordia delivers second ro-ro ship for windmill sector


WERKENDAM The Concordia Group has recently delivered the second ro-ro ship, a sister ship to the Rotra Vente and brought it to the waters. The heavy cargo ‘roll-on/ roll off’ coaster Rotra Mare has been designed especially to efficiently transport parts of windmills.


The Rotra Mare is 141 metres in length and has a width of over 20 metres. The container- ship which already existed has been rebuilt to fit the same specifications as the Rotra Vente when it was rebuilt. What stands out is its especially developed bow and the extensible ramp. Both the bow and the ramp are set in motion by hydraulic systems. This gives it the roll-on/roll off quality: cargo can be rolled on and off board. To Siemens, the company renting it this will entail cost reduction, less cranes being employed and faster loading and offloading. This also reduces the risk of damage. Siemens is going to use the Rotra Mare on the North Sea, together with the Rotra Vente to transport masts, nacelles and rotor blades for windmills. The biggest


difference between the Rotra Vente and the Rotra Mare is its removable cradles of which the middle ones can be adjusted in size. Its basic design was a Casco of a containership, which has been transformed especially into a special service heavy cargo vessel with ramp. By opting to rebuild it rigorously Concordia is set on a diversification strategy, by reducing overcapacity. The Rotra Vente is innovative in a number of ways. Apart from the characteristic moveable bow and ramp it is equipped with the latest technology. The deck can carry a heavy load, there is a completely autonomous ballast and de-ballast installation and the ship has been especially designed for its rump form, attaining maximum efficiency. The ship was rebuilt in Hardinxveld- Giessendam. Under the wings of contractor Holland Shipyards many companies from Werkendam have chipped in to realize the ship’s completion. For more information on the manner in which it was built and how its services and products were supplied you can check the detailed list of suppliers and the page on its completion, which you’ll find attached to this edition.


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