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Displaying items by tag: Design

#Lifeboats - The video above shows off a prototype of the RNLI's new lifeboat class, the Shannon, as it undergoes sea trials to determine how it handles the rough weather all too common to the seas around the UK and Ireland.

As previously reported on Afloat.ie, Irish naval architect Peter Eyre has been instrumental in the new lifeboat design, which is nearly 50% faster than the vessels currently in service.

It's also the second RNLI boat to be designed by an Irishman, after the Atlantic 21 developed in the 1970s by Cork-born Rear Admiral Desmond Hoare at the Atlantic College in Wales.

In other RNLI news, tributes were paid in the Isle of Man this week to the founder of the lifeboat institution in an annual ceremony on the Irish Sea island.

As BBC News reports, Sir William Hillary launched an appeal in 1824 that let to the formation of the RNLI, and he went on to serve as a member of the lifeboat crew at Douglas.

Published in RNLI Lifeboats

#INLAND WATERWAYS - Waterways Ireland has taken delivery of its third tug boat from Mooney Boats of Killybegs.

Designed by Marine Design International, the Inish Fendra is an 11.2-metre LOA steel-built tug which has been specifically tailored for operation on the Shannon-Erne waterway system.

Its design bears many similarities to the Inis Muillin, which was delivered by Mooney Boats in 2010.

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The new tug, Inisfendra built by Mooney Boats of Donegal

According to Maritime Journal, the design process "involved significant input from the vessel operators and managers combined with the latest technology and ideas from the designers and builders to improve on efficiency" and safety.

A key feature of the Inish Fendra is its 3,500-litre ballast tank and pumping system, which is operated by the push of a button and can reduce the vessel's air draft by 0.2m.

Maritime Journal has much more on the Inish Fendra HERE.

Published in Inland Waterways

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