Last December 12th, Holland Offshore’s newbuild Dutch Blue arrived in Flushing, the Netherlands, towing the pontoon NP 328 which transported 6 hulls owned by Ruyven.
This trip has been the maiden voyage of the Dutch Blue; a towing / support vessel built under Dutch flag regulations and owned by Holland Offshore, part of the Holland Shipyards Group. The vessel has a length of 52,8 m, a width of 13,2 m, a bollard pull well over 50 tons and is propelled by means of two Wärtsillä 8L20 main engines, which deliver a combined 4300 hp capacity. The vessel has a complement of 37 persons.
The Dutch Blue departed from Shanghai the end of July with the pontoon NP328. After taking in fuel and performing small repairs in Singapore, with the barge moored in Batam, the trip continued to Mauritius and around the Cape towards Tema, Ghana.
In Ghana the vessel took in fuel and supplies. Also the Dutch Blue was presented to the local market. Holland Shipyards has recently opened a sales branch in the country, and the Dutch Blue could be a perfect fit for the young offshore market that is still taking off.
After this stop, the journey was continued to Holland, where she arrived on the 12th of December.
On the Pontoon NP 328, measuring 95 x 36,5 x 6,5 m, three inland push barges of 87,5 x 11,45 m and three 76,5 x 11,45 m barges are seafastened. All six barges are owned by Ruijven a shipbroker located in Werkendam, the Netherlands.
After unloading, the barges will be taken on a slipway for inspection and repairs.
Conquest MB I
Crane barge Conquest MB I is owned by Conquest Offshore, a Dutch Joint Venture between Concordia Offshore and Zwagerman Offshore Services. The Crane barge is built for offshore transport services, decommissioning of offshore platforms, renovation and installation, and installation activities for, for example, the offshore wind industry. Both organizations already have a successful track record in the maritime and offshore industry.
On deck of the 136 36 m pontoon, the Spacelift MC 35000 DLS is installed. This crane is unique with a lifting capacity of 1,500 tons and stands for a new era in the offshore industry. The Spacelift MC 35000 DLS is a “Mobile Offshore Crane” which means that the Heavylift Crane is mounted on a pedestal with a Self-supporting foundation, which can be installed on deck of a pontoon or vessel. So far, this is the first Heavylift Offshore Crane built after this philosophy.
The Dynamic Load System (DLS) improves the dynamic capacity of the crane. Four cylinders are installed on the aft-side of the crane on the 18 m diameter ring. These cylinders pull when the crane is being loaded and push when the crane is not active, to compensate for the counterweights.
The DLS capacity is 1,000 tons and the counterweight 450 tons. Together with the structure of the crane , this generates sufficient capacity for a load of 1,500 tons.
With the universal basis and the heavy double hoist of 63 til 75 meters, the lifting capacity of the crane can extend to 21,000 tm. 1,080 tons with a radius of 20,5 meters. The crane capacity is ideal for the installation of offshore wind foundations, decommissioning and salvaging of shipwrecks. The double hoist can be replaced by a 97 m or even 124 meter long single hoist.
The Concquest MB I is equipped with a precise and automated anti-heeling system, which stabilizes the pontoon by pumping water around to the various ballast tanks. Additional to the space and weight taken by the crane, the Conquest MB I has a free deck space of 3668 m2 for a load of 9,000 tons.