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Displaying items by tag: Decommissioned LE Aisling

#Decommissioning - Minister with Responsibility for Defence, Mr Paul Kehoe, yesterday attended the decommissioning ceremony of LÉ Aisling in Galway Docks.

LÉ Aisling was the longest serving vessel in the Irish Naval Service fleet. The ‘Deirdre’ class vessel built by Verolme Cork Dockyard was also an improved version as the final third ‘Emer’ class. She entered service in 1980.

The decommissioning ceremony took place of LÉ Aisling alongside Molvoy Quay at the port's Dun Aengus Dock. The direct successor will be newbuild OPV90 class LÉ William Butler Yeats which is to undergo builder’s trials next month.

Also previously reported on Afloat.ie the Government has placed an order for a fourth OPV90 'Beckett' class costing €54.3m from Babcock International’s north Devon yard.

In his address Minister Kehoe stated that: LÉ Aisling has been decommissioned after 36 years of outstanding service to the State and noted that during this time she travelled in excess of 628,000 nautical miles, an equivalent of circumnavigating the globe 32 times. Her crew has boarded over 5,500 vessels at sea and detained over 220 fishing vessels.

The Minister recalled that during her service, LÉ Aisling has been involved in many successful operations. The most notable of these include the arrest of the ‘Marita Ann’ in 1984 and her activities as the first vessel on the scene of the Air India disaster in 1985, for which several of her crew were decorated.

The Minister also stated: In pursuit of our commitment to progress the Ships Replacement Programme, the Government has provided a significant increase in capital funding to enhance the capabilities across the Defence Forces. The replacement vessel for LÉ Aisling, LÉ William Butler Yeats is scheduled for delivery shortly and the signing of contracts this week for delivery of a fourth vessel (see above), represent tangible demonstrations of this commitment.

LÉ Aisling is twinned with Galway and has had a long association with the city. The minister also praised the men and women who sailed on LÉ Aisling throughout her years of service, and marked out the great pride they had shown in her close association with the city and the many thousands of euro raised by them on behalf of the Children’s Ward in Galway University Hospital.

Published in Navy

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