DLS 4200 heavylift vessel.

Engineering support for cable laying integration

In early 2021, Ulstein Design & Solutions BV was contracted by NPCC from Abu Dhabi to support the upgrade of the Ulstein designed DLS-4200 heavy-lift pipelaying vessel with a large cable lay carousel on the main deck.

Published
30 September 2021
Share
  • FE model of the structural analysis on DLS 4200

Ulstein has been responsible for assessing the structural and stability impact on the vessel. This has been a challenging job, using detailed FE analysis, as this vessel features Ulstein's double-deck principle with a large overspan at the ship's centre line accommodating the pipelay firing line.

Working closely together with NPCC's project manager Sherif El Seidy and carousel designers Enersea and Neptune Marine from the Netherlands, a class approved solution was accessed with no major below deck modifications.

Get in touch

Edwin van Leeuwen Ulstein 19 comp bw

Edwin van Leeuwen

Description
Managing Director
Affiliation
Ulstein Design & Solutions B.V.

Latest news

Hull arrival Nexans Electra CLV at Ulstein Verft 0062 MARTIN GISKEGJERDE OCLIN
Press Release

Outfitting of the Nexans Electra CLV begins at Ulstein Verft

The hull of the state-of-the-art DP3 cable-laying vessel Nexans Electra arrived at Ulstein Verft on 5 July 2025. This marks the commencement of the outfitting and completion phase of the vessel. Upon completion in 2026, she will feature a split turntable on deck capable of holding up to 10,000 tonnes of cable, an under-deck turntable with a 3,500-tonne cable capacity, and a fibre optic tank with a 450-tonne capacity.

Edwin van Leeuwen Ulstein 19 comp bw

Edwin van Leeuwen

Managing Director

Affiliation
Ulstein Design & Solutions B.V.