ETA’s vessel layout skills and experience are considerable. Designing vessel spreads for a range of purposes ETA can provide all necessary services including design, layouts, equipment design and modification, class approval, and the engineers required to mobilise the spread.

ETA’s vessel layout skills and experience are considerable. ETA has developed spreads for a range of purposes across all the major subsea cable markets and can manage everything from design, to procurement and mobilisation.

We have converted telecoms cable vessels to Power Cable/Umbilical layers, including the design of deck layout and full manufacturing drawings for modifications to cable tanks, tank cones, coiling arms, gantry, deck quadrants, cable engine seats and chute.

We have prepared deck layout designs and class approval for fitting of large cable trenching ROV to ‘flatback vessels’ and supplied the mobilisation engineers.

In the offshore wind market we have provided deck layout design and class approval for barges to be used as cable lay vessels for installation and plough burial of export cables including design and full manufacturing drawings for equipment seats, cable tank, gantry, coiling arm, and deck quadrants etc. Mobilisation engineers were also supplied by ETA.

ETA have also provided deck layout and detailed design including class approval for inspection ROV and specialist mine disposal equipment. Below you will find a small sample of ETA’s past experience.

To discuss any deck spread/vessel layout requirements you may have, please call us on:

Project Management Experience and Expertise:

Cable Lay Spreads

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Atlantic Guardian – Trial Cable Lay spread: Deck layout, and detailed design for fitting a lay and recovery spread for bundled cable to be used for burial trials. Mobilisation engineers supplied by ETA.

Team Oman – Bundled Cable Lay: Deck layout design for project specific modifications for installation of bundled cable system.

Northern River – Bard OWF: Design, full manufacturing drawings and supply of main components for large power cable coiling arm and gantry. Included preparation documents for class approval.
Cable Handling Spreads

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Openhydro - Recovery and Connection: Deck layout and design of recovery and connection spread for the grid connection of a tidal site demonstrator platform. Mobilisation engineers supplied by ETA.

Stemat 63 - London Array OWF pull-in trials: Deck spread layout and design for barge to be used to trial a number of techniques for J tube pill-ins for OWF platforms. Included class approval for fitting crane.

Olympic Zeus: Britned Jointing Spread: Deck layout and detailed design for fitting a cable repair spread for bundled cable both for in-line and ‘omega’ joints. Included class approval.
Burial/Equipment Spreads

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Excalibur –Trenching ROV: Deck layout design and class approval for fitting of large cable trenching ROV to ‘flatback vessel’.

Atlantic Guardian – PLGR and touchdown monitoring and survey ROV: Deck layout and detailed design for fitting an ROV system and PLGR winches, including class approval. Mobilisation engineers supplied by ETA.

Large Trenching ROV: Deck layout design and class approval for fitting of large cable trenching ROV to ‘flatback vessel’. Mobilisation engineers supplied by ETA.

IT intrepid – Plough: Deck layout and design for conversion of telecoms maintenance vessel to ‘ploughing’ vessel. Including tow winch foundation.
Unique/Specialist Spreads

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John Lethbridge –Mine Clearance: Deck layout and detailed design including class approval for inspection ROV and specialist mine disposal equipment.

Eclipse - LORI/LORI II: Conversion of ‘flatback’ supply vessel to cable lay vessel for lay of scientific array cables. Design included deck layout and full manufacturing drawings for all cable equipment seats (inc. 50 tonne drum engine), cable tanks, chutes etc. Mobilisation engineers supplied by ETA. Additional cable tanks and sensor storage added for LORI II.

Clean Sea – Cable Recovery: Deck spread for the recovery of large volumes of power cable. Included feasibility study and examination of stowage, cable handling, recovery and recycling methods and options. ETA Produced deck layouts and fabrication drawings for the full stowage arrangement.
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