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Irish Times Goes Aboard RV Tom Crean for Marine Science Story

28th October 2026
Buoyed Up – The M5 weather buoy aboard RV Tom Crean during a Celtic Sea research survey, featured in new Irish Times coverage of ocean science, weather forecasting and marine conservation
Buoyed Up – The M5 weather buoy aboard RV Tom Crean during a Celtic Sea research survey, featured in new Irish Times coverage of ocean science, weather forecasting and marine conservation

A new Irish Times photo essay and mini-documentary offer a behind-the-scenes look at life and science aboard the Marine Institute's national research vessel, RV Tom Crean, during a recent survey in the Celtic Sea.

The coverage, published on 26 October, follows scientists, technicians and crew during an August survey that included replacing the M5 weather buoy around 30 nautical miles south of Hook Head, Co. Wexford.

Through photography and video, the features show the expertise, teamwork and technology involved in conducting scientific research in Ireland's offshore waters.

Weather Forecasting and Marine Wildlife

One key operation featured is the replacement of the M5 weather buoy, jointly managed by the Marine Institute and Met Éireann. The buoy provides ocean and atmospheric observations that support weather forecasting, maritime safety, and scientific research.

Scientists aboard RV Tom Crean also investigated underwater noise and its potential effects on marine wildlife, surveyed marine biodiversity and tested approaches to locating lost fishing gear.

Together, these activities deepen understanding of Ireland's marine environment and support evidence-based management of ocean resources.

The People Behind the Science

Operated by the Marine Institute, RV Tom Crean supports research undertaken by the Institute, universities, State agencies and national and international partners. The vessel provides specialist facilities, equipment and expertise required to study Ireland's seas and changing marine environment.

The Irish Times coverage highlights not only the marine science being undertaken but also the people who make it possible, from researchers deploying instruments and collecting samples to technicians operating specialist equipment and crew navigating demanding offshore conditions.

“Every voyage on the RV Tom Crean helps build our understanding of Ireland's ocean, from improving weather forecasting and maritime safety to protecting marine biodiversity and supporting sustainable use of our marine resources,” said Aodhán Fitzgerald, Research Vessel Manager at the Marine Institute.

“This Irish Times feature offers a valuable opportunity to showcase the people, expertise and technology behind that work and to bring marine science closer to the public.”

The coverage lets readers see how research at sea contributes to weather forecasting, ocean observation, marine conservation, and the sustainable management of Ireland's marine resources. The Marine Institute also highlighted the vessel's wider work when it marked its third anniversary in 2025.

Readers can explore the Irish Times photo essay on RV Tom Crean and watch the accompanying mini-documentary. Further details are available from the Marine Institute's research vessels pages.

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Marine Institute Research Vessel Tom Crean

Ireland’s new marine research vessel will be named the RV Tom Crean after the renowned County Kerry seaman and explorer who undertook three major groundbreaking expeditions to the Antarctic in the early years of the 20th Century which sought to increase scientific knowledge and to explore unreached areas of the world, at that time.

Ireland's new multi-purpose marine research vessel RV Tom Crean, was delivered in July 2022 and will be used by the Marine Institute and other State agencies and universities to undertake fisheries research, oceanographic and environmental research, seabed mapping surveys; as well as maintaining and deploying weather buoys, observational infrastructure and Remotely Operated Vehicles.

The RV Tom Crean will also enable the Marine Institute to continue to lead and support high-quality scientific surveys that contribute to Ireland's position as a leader in marine science. The research vessel is a modern, multipurpose, silent vessel (designed to meet the stringent criteria of the ICES 209 noise standard for fisheries research), capable of operating in the Irish Exclusive Economic Zone (EEZ). The Tom Crean is able to go to sea for at least 21 days at a time and is designed to operate in harsh sea conditions.

RV Tom Crean Specification Overview

  • Length Overall: 52.8 m
  • Beam 14m
  • Draft 5.2M 

Power

  • Main Propulsion Motor 2000 kw
  • Bow Thruster 780 kw
  • Tunnel thruster 400 kw

Other

  • Endurance  21 Days
  • Range of 8,000 nautical miles
  • DP1 Dynamic Positioning
  • Capacity for 3 x 20ft Containers

Irish Marine Research activities

The new state-of-the-art multi-purpose marine research vessel will carry out a wide range of marine research activities, including vital fisheries, climate change-related research, seabed mapping and oceanography.

The new 52.8-metre modern research vessel, which will replace the 31-metre RV Celtic Voyager, has been commissioned with funding provided by the Department of Agriculture, Food and the Marine approved by the Government of Ireland.

According to Aodhán FitzGerald, Research Vessel Manager of the MI, the RV Tom Crean will feature an articulated boom crane aft (6t@ 10m, 3T@ 15m), located on the aft-gantry. This will be largely used for loading science equipment and net and equipment handling offshore.

Mounted at the stern is a 10T A-frame aft which can articulate through 170 degrees which are for deploying and recovering large science equipment such as a remotely operated vehicle (ROV’s), towed sleds and for fishing operations.

In addition the fitting of an 8 Ton starboard side T Frame for deploying grabs and corers to 4000m which is the same depth applicable to when the vessel is heaving but is compensated by a CTD system consisting of a winch and frame during such operations.

The vessel will have the regulation MOB boat on a dedicated davit and the facility to carry a 6.5m Rigid Inflatable tender on the port side.

Also at the aft deck is where the 'Holland 1' Work class ROV and the University of Limericks 'Etain' sub-Atlantic ROV will be positioned. In addition up to 3 x 20’ (TEU) containers can be carried.

The newbuild has been engineered to endure increasing harsher conditions and the punishing weather systems encountered in the North-East Atlantic where deployments of RV Tom Crean on surveys spent up to 21 days duration.

In addition, RV Tom Crean will be able to operate in an ultra silent-mode, which is crucial to meet the stringent criteria of the ICES 209 noise standard for fisheries research purposes.

The classification of the newbuild as been appointed to Lloyds and below is a list of the main capabilities and duties to be tasked by RV Tom Crean:

  • Oceanographic surveys, incl. CTD water sampling
  • Fishery research operations
  • Acoustic research operations
  • Environmental research and sampling operation incl. coring
  • ROV and AUV/ASV Surveys
  • Buoy/Mooring operations