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DAMEN RUDDERS HELP 10 ARKLOW VESSELS WITH MANOEUVRABILITY

DAMEN RUDDERS HELP 10 ARKLOW VESSELS WITH MANOEUVRABILITY

Thursday, June 24, 2021 

Damen Marine Components has equipped 10 ships for the Irish shipping company Arklow Shipping with Van der Velden Master rudders and Barke high-lift flap rudders which are capable of generating high lifting forces.

The latest vessel Arklow Artist, will be put into service in the foreseeable future. Arklow Artist is currently being outfitted at the Ferus Smit shipyard in Westerbroek, the Netherlands. This vessel is part of Arklow Shipping’s 8,500 dwt series. The first five ships in this series, Arklow Abbey, Accord, Ace, Archer and Arrow, are now in service. This also applies to the 16,500 dwt series, which consists of four ships: the Arklow Wave, Wind, Willow and Wood.

Initially, both series were going to be equipped with NXA fishtail rudders. Arklow Shipping, with offices in Arklow, Ireland and Rotterdam, the Netherlands, asked its captains and superintendents for feedback, which revealed a strong need for the capability of crabbing; the ability of a ship to move sideways without moving forwards.

Marnix de Bruijn, sales manager Damen Marine Components, said: “An understandable wish. Especially the ships from the 8,500 dwt series need a lot of lateral movements, because they commute from port to port and have to manoeuvre a lot.”

In consultation with the management boards of Arklow Shipping and Ferus Smit, it was decided to replace the NXA rudders from the original design. The 8,500 dwt series has therefore been fitted with Van der Velden Barke high-lift flap rudders. With the progressive rotating flap, the Barke rudder generates high lifting forces at large rudder angles and low drag at small rudder angles. This aids in sideways shifting.

Because there was no time for this with the 16,500 dwt series due to the delivery time of the Barke rudders, the best alternative was sought for this series. These four ships are equipped with Van der Velden Master rudders. With rudder angles of up to 65°, this fishtail rudder provides high lift. The design can be optimised for many different types of ships.

Arklow Shipping is said to be pleased with the conversion of the rudders and the behaviour of the ships, which are now used to great satisfaction. In addition to the rudders, the 10 Arklow vessels are equipped with the Van der Velden Commander Rotary Vane steering system, including hydraulic power unit and the Damen Marine Components control system.

The four 16,500 dwt series ships are 145.5m long and 19.25m wide. The six ships from the 8,500 dwt series have a length of 116.89m and a width of 14.99m. Bureau Veritas has classified all 10 ships as Ice class 1A.

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