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Displaying items by tag: VoithSchneider trator tugs

Three Voith-Schneider tugs that are surplus to the requirements of the Dublin Port Company towage fleet are for sale, writes Jehan Ashmore.
Two of the three tugs, Deilginis and Cluain Tarbh that are painted in a cream and black livery scheme, can be seen berthed at the North Wall Extension, close to the East-Link toll-lift bridge. Moored alongside them are their green hulled replacements.

The smallest of the tugs for sale is the 17-tonnes bollard pull Ben Eadar (1972/198grt) which was built by Richard Dunston (Hessle) Ltd. She is berthed elsewhere in the port alongside the former Dundalk Port Company owned dredger Hebble Sand, which too has been recently put up for sale. For more information about the grab-hopper dredger click HERE.

Ben Eadar was decommissioned in 2009 and her 35-tonnes bollard-pull fleetmates Cluain Tarbh (1991/268grt) built by McTay Marine of Bromborough and Deilginis (1996/335grt) remained in service until late last year.

Of the trio Deilginis is the last tug commissioned by the Dublin Port & Docks Board (DP&DB) and the 30m tug is also the last to carry a traditional naming theme based on Dublin Bay coastal suburbs spelt in Irish. Deilginis is the Irish for Dalkey, Cluain Tarbh is for Clontarf and Ben Eadar is a translation for Howth.

Deilginis was launched from Astilleros Zamakona S.A. in Bilbao, the same Spanish shipyard that was commissioned by the Dublin Port Company to build two 50-tonnes bollard pull tractor tug sisters. The first newbuild Shackleton entered service late last year and she was followed by Beaufort in early 2010. In March of that year the tugs that cost €6m each to build were officially named in a joint ceremony.

Published in Dublin Port

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