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Displaying items by tag: Coliemore tug

Coliemore, a former Dublin Port tug named after Coliemore Harbour in Dalkey, Co. Dublin is undergoing scrapping this week at Cork Dockyard, writes Jehan Ashmore.
For over a decade the veteran tug built in 1962 by Richard Dunston (Hessle) Ltd, in Yorkshire has been languishing at the dockyard ship repair facility in Rushbrooke, Cork Harbour.

The 162 gross tonnes tug had served a career of nearly three decades in Dublin Port, after entering service in 1972. Prior to working in Irish waters the 100ft tug spent the previous decade operating in the UK as Appelsider for Lawson-Batey Tugs Ltd who chartered her to Tyne Tugs Ltd. For historical record and photos click HERE.

In 1998 the Dublin Port Company disposed of the Coliemore alongside her running mate Clontarf (1963/178grt) the former Cluain Tarbh, also built from the same Yorkshire shipyard on the banks of the River Humber.

Initially they were towed to Liverpool but they later appeared at Cork Dockyard in 1999. The Clontarf remained there for a year until she was sold to Barcazas Dominicia SA, Santo Domingo in the Dominican Republic. For photo of the tug in far distant waters click HERE. It was intended Coliemore would follow her Caribbean counterpart but her sale fell-through.

The vessel's ownership eventually transferred to Cork Dockyard where her scrap value will pay for her long-term berthing fees. The tug recently made her final short journey under tow from her berth at the former Verolme Cork Dockyard (VCD) to the facilities slipway where work to break-up the vessel began.

Coliemore and her fleet-mates were given the traditional naming theme of Dublin Bay coastal suburbs spelt in Irish. The naming policy was used by the Dublin Ports & Docks Board (DP&DB) which operated the fleet remained until transferred to the Dublin Port Company established in 1997.

The last tugs to carry the traditional names, Ben Eadar (Howth), Cluain Tarbh (Clontarf) and Deilginis (Dalkey) are now up laid-up awaiting to be sold, to read more click HERE.

Between the 14-16th centuries Dalkey Sound became increasingly important as larger vessels with deeper drafts could no longer enter the port in Dublin due to the dangers of constantly shifting sandbanks and swallow channels in Dublin Bay.

The nearest alternative was for vessels to anchor off Dalkey Island and in the relative shelter of Dalkey Sound where cargoes for the capital where transferred to and fro by lighters to the coastline along Dalkey at Coliemore, which became the principle port for Dublin. Some of the cargo was stored temporally in the medieval castles in Dalkey, otherwise it was directly transported by horse and cart across the plateau to the city.

It was not until the 17th century that the issue of accessing the port of Dublin was resolved, with the completion of the harbour walls that enabled shipping to return on a frequent basis. Captain Bligh of the 'Mutiny on the Bounty' completed mapping Dublin Bay in 1803 which became the most accurate chart at the time and this aided to the safety of mariners.

The fortunes of Dublin's shipping trade increased due to the combination of an easier and safer navigational channel and deeper depths along the quaysides. This led to the eventual demise of shipping using Dalkey. The present-day harbour structure at Coliemore Harbour was constructed in 1868 and is home to a humble fleet of recreational boats and a passenger-ferry service to the island.

Published in Cork Harbour

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