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Displaying items by tag: Alpha Marine

Wicklow Port based multi-disciplinary marine company, Alpha Marine has acquired a Damen Shipyard built multi-cat of their 2309 design, which had been operating in the Netherlands.

The purchase of the multicat from Purus HST of Swansea, Wales, was concluded in mid-December and represents a significant investment by the Irish marine consultancy company which has an existing fleet of five vessels providing tug, workboat charter and marine survey services.

AMS Retriever is the new name given to the multipurpose Dutch shipyard built vessel which will work throughout Europe in support of offshore and near shore energy projects, dredging as well as port infrastructure.

The shallow draft multicat is a powerful and versatile craft suitable for near coastal marine civil support projects. In addition the multicat is an ideal partner for dredge assist, towage, survey, anchor and buoy handling duties.

Equipped with powerful crane and winches, AMS Retriever has a bollard pull of 16.2 tonnes and has a Bureau Veritas (BV) classification giving the vessel plying limits for un-restricted navigation.

A deck load is available for 24 hour operations and a crew of 7 have accommodation in heated and air conditioned cabins.

With the AMS Retriever joining the company, Afloat highlights that a former tug of the same name is no longer part of the fleet.

Published in Ports & Shipping

Alpha Marine will undertake a geophysical survey campaign in relation to the Clogherhead Offshore Wind Farm off the coast of Co Louth from next Thursday 25 May to Wednesday 27 July.

The survey will be conducted by the Baltic Explorer (callsign LYBW) utilising multibeam echo sounders, sub-bottom profilers, side-scan sonars, magnetometers and ultra-high-resolution survey equipment.

Geophysical equipment will be both hull-mounted and towed. Typically, the towed cable lengths will be about four times the water depth while acquiring survey data.

The work will be conducted on a 24-hour basis and the work vessel will display appropriate lights and signals. Mariners are advised to keep continuous watch on VHF Channel 16 when navigating the area.

All other vessels operating within this area are requested to keep their distance and pass at minimum speed to reduce vessel wash.

Mariners are also asked to note that the start date and the duration of the activity are dependent on weather and work progress.

Coordinates of the survey area and contact details can be found in Marine Notice No 26 of 2022, attached below.

Published in Power From the Sea

#ports&shipping  - Wicklow based Alpha Marine are carrying out a dredging project off the UK south coast for an offshore windfarm project, writes Jehan Ashmore.

The vessel support and marine services company deployed the Husky, a twin screw shallow draft tug to conduct nearshore dredging support at the Rampion Offshore Windfarm.

Among the marine engineering plant involved in the project off the Sussex coast has been the ‘Spud’ barge Beluga. The vessel has been manoeuvred by Husky out of Shoreham Harbour which is a base for such operations. 

This has involved the dredging spread for the excavation and backfill of the trench for the export cable leading from the Rampion Offshore Windfarm.

Published in Dredging
Tagged under

#Charter - Alpha Marine, formerly Island Shipping, based in Wicklow, has seen the return of one of its wind-farm support vessels following a survey charter in the North Sea, writes Jehan Ashmore.

The water-jet propelled Island Panther had been working in the Waddenzee, an intertidal zone of the Ems Estuary located between The Netherlands and Germany. Along this coast are the Frisian /Wadden Islands, an archipelago that lies off these countries and stretches as far as Denmark.

Island Panther which also is a crew transfer vessel, was deployed from the Dutch port of Ijmuiden to conduct the survey zone. The 17m craft operated in the ultra-shallow waters of the survey site.

 

Published in Ports

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