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Van der Kamp - HZ Ijsseldelta |
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In early 2010 Saltwater Engineering was awarded the complete engineering package for a new aftship, including superstructure, of the hopper dredger Ijsseldelta owned by Van der Kamp International Dredging, located in Zwolle, the Netherlands.

Our scope started with the development of the new lines for the hull. This job was complicated by the fact that “gondolas” were to be integrated into the lines of the vessel. The “gondolas” have a positive effect of the resistance of the vessel. A detailed set of CFD calculations were completed together with MARIN (Maritime Research Institute Netherlands) in order to obtain an optimal design.

After the development of the hull lines the general construction plans were developed. During this phase the detailed scantlings and longitudinal strength calculations were completed. The general construction plans, along with all necessary calculations, were submitted to the Class Society for approval. Subsequently the actual workshop drawings and extraction of all parts were completed. In some cases Finite Element calculations were generated to show that the construction would meet the Class requirements.

Saltwater completed the drawing package for the entire aftship, starting at the aft hopper bulkhead and extending to the transom. Furthermore the superstructure was also drafted as well as the aluminum bridge deck.


During the entire project there was an intense working relationship between Van der Kamp and Saltwater so that all the clients’ wishes and needs could be integrated into the new design. All involved parties can look back on a successful project.
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