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Additional Newbuild Launched for Irish Mainport's Fleet of Hybrid Survey Vessels

30th January 2026
The newest vessel for Cork-based Irish Mainport Group, Geo Master of 41.5m, was officially launched at a Dutch shipyard where the DP2 survey vessel of 498 tons will serve the N-Sea Group operating integrated total subsea solutions for the international oil & gas and renewable industries. Above is its twin, Geo Ranger, which was also completed by the same Dutch yard.
The newest vessel for Cork-based Irish Mainport Group, Geo Master of 41.5m, was officially launched at a Dutch shipyard where the DP2 survey vessel of 498 tons will serve the N-Sea Group operating integrated total subsea solutions for the international oil & gas and renewable industries. Above is its twin, Geo Ranger, which was also completed by the same Dutch yard. Credit: N-Sea Group- Linkedin

A proud milestone took place for Irish Mainport Holdings as a newbuild survey vessel was officially launched at a shipyard this month in the Netherlands, writes Jehan Ashmore.

The launch event of the Geo Master was held on the 9th January at the Neptune Construction B.V. shipyard in Hardinxveld-Giessendam, located in the province of South Holland.

Designed to support high-resolution geophysical and geotechnical surveys, the DP2 vessel is equipped with advanced systems, enhancing operational efficiency and data accuracy, and be used in the offshore wind sector. As Afloat reported, the hybrid survey and ROV support vessel was scheduled to enter service by March. 

It was just over a year ago when the shipyard carried out the vessel's keel-laying ceremony. It will be a new and important contribution to the growth ambitions of N-Sea Group. The subsea infrastructure solutions provider group based in Dordrecht had signed a long-term charter agreement for the additional vessel, which follows the same design of the Geo Ranger, equipped with similar equipment, which is under N-Sea Group management and control.

The new vessel will be upgraded to meet the latest standards in fuel efficiency and emissions and is able to run on biofuel. 

A crew of 7 will be provided accommodation in addition to 19 personnel on what will be a Dutch-flagged vessel, which will be under full commercial management and control of N-Sea.

Published in Shipyards
Jehan Ashmore

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Jehan Ashmore

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Jehan Ashmore is a marine correspondent, researcher and photographer, specialising in Irish ports, shipping and the ferry sector serving the UK and directly to mainland Europe. Jehan also occasionally writes a column, 'Maritime' Dalkey for the (Dalkey Community Council Newsletter) in addition to contributing to UK marine periodicals. 

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Shipyards

Afloat will be focusing on news and developments of shipyards with newbuilds taking shape on either slipways and building halls.

The common practice of shipbuilding using modular construction, requires several yards make specific block sections that are towed to a single designated yard and joined together to complete the ship before been launched or floated out.

In addition, outfitting quays is where internal work on electrical and passenger facilities is installed (or upgraded if the ship is already in service). This work may involve newbuilds towed to another specialist yard, before the newbuild is completed as a new ship or of the same class, designed from the shipyard 'in-house' or from a naval architect consultancy. Shipyards also carry out repair and maintenance, overhaul, refit, survey, and conversion, for example, the addition or removal of cabins within a superstructure. All this requires ships to enter graving /dry-docks or floating drydocks, to enable access to the entire vessel out of the water.

Asides from shipbuilding, marine engineering projects such as offshore installations take place and others have diversified in the construction of offshore renewable projects, from wind-turbines and related tower structures. When ships are decommissioned and need to be disposed of, some yards have recycling facilities to segregate materials, though other vessels are run ashore, i.e. 'beached' and broken up there on site. The scrapped metal can be sold and made into other items.