Menu
Allianz and Afloat - Supporting Irish Boating

Ireland's sailing, boating & maritime magazine

In association with ISA Logo Irish Sailing

Displaying items by tag: iCRAG

The next legs of the Mobility of Sediment Waves and Sand Banks in the Irish Sea (MOVE) Survey begin tomorrow, Wednesday 23 September, according to the latest Marine Notice from the Irish Maritime Administration.

As previously reported on Afloat.ie, the survey is being carried out in support of ongoing research at the Irish Centre for Research in Applied Geosciences (iCRAG).

The latest two legs of the survey will take place from 23-28 September and from 7-19 October in the south Irish Sea.

Works will be carried out by the RV Celtic Voyager (callsign EQIN) using a variety of equipment and techniques, including ADCP, multibeam sonar and sediment sampling.

All works will be performed on a 24-hour schedule and the vessel will display appropriate lights and signals.

Details of all works entailed and the survey areas are included in Marine Notice No 43 of 2020, a PDF of which is available to download below.

Published in News Update

The Mobility of Sediment Waves and Sand Banks in the Irish Sea (MOVE) Survey will be carried out from Tuesday 31 March until Monday 13 April in the south Irish Sea, according to the latest Marine Notice from the Department of Transport, Tourism and Sport.

This survey is being carried out in support of ongoing research at the Irish Centre for Research in Applied Geosciences (iCRAG).

The survey will be carried out by the RV Celtic Voyager (callsign: EQIN) using a variety of equipment and techniques, including ADCP, multibeam sonar and sediment sampling.

Work will be performed on a 24 hour schedule and the vessel will display appropriate lights and signals.

Details of all works entailed and the survey area are included in Marine Notice No 12 of 2020, a PDF of which is available to read or download HERE.

Published in News Update

A geohazard investigation to provide support for ongoing research at the Irish Centre for Research in Applied Geosciences (iCRAG) will be undertaken in the Irish Sea from Thursday 24 October until Wednesday 6 November, weather dependent.

The locations of these works at various shipwreck sites off the Louth coast are provided in Marine Notice No 41 of 2019. The equipment and techniques to be used include:

  • Surveying using multibeam echo sounders and shallow seismics (pinger);
  • Passive acoustic monitors (PAM) deployed at the indicated locations near the seabed to record acoustic data;
  • Seismic sparker equipment to reveal subsurface structure and features;
  • Sediment core taken at indicated locations to characterise the lithological characteristics of the seabed with grab samples taken within a 3nm range of these locations.

The surveys will be completed on a 24-hour schedule by the RV Celtic Voyager (callsign EIQN) which will display appropriate lights and signals.

Acoustic surveying using a multibeam echo sounder and seismic sub-bottom surveys using a sparker/pinger system will be performed during both day and night operations in accordance with safe operating practices regarding MMO procedures and cognisant of fishing gear.

Sediment sampling using cores will be carried out during daylight hours due to limited ship mobility. PAM units will be deployed and retrieved at both night and day as dictated by survey conditions.

Full details of the survey locations as well as contact information are included in Marine Notice No 41 of 2019, a PDF of which is available to read or download HERE.

Published in News Update

The Half Ton Class was created by the Offshore Racing Council for boats within the racing band not exceeding 22'-0". The ORC decided that the rule should "....permit the development of seaworthy offshore racing yachts...The Council will endeavour to protect the majority of the existing IOR fleet from rapid obsolescence caused by ....developments which produce increased performance without corresponding changes in ratings..."

When first introduced the IOR rule was perfectly adequate for rating boats in existence at that time. However yacht designers naturally examined the rule to seize upon any advantage they could find, the most noticeable of which has been a reduction in displacement and a return to fractional rigs.

After 1993, when the IOR Mk.III rule reached it termination due to lack of people building new boats, the rule was replaced by the CHS (Channel) Handicap system which in turn developed into the IRC system now used.

The IRC handicap system operates by a secret formula which tries to develop boats which are 'Cruising type' of relatively heavy boats with good internal accommodation. It tends to penalise boats with excessive stability or excessive sail area.

Competitions

The most significant events for the Half Ton Class has been the annual Half Ton Cup which was sailed under the IOR rules until 1993. More recently this has been replaced with the Half Ton Classics Cup. The venue of the event moved from continent to continent with over-representation on French or British ports. In later years the event is held biennially. Initially, it was proposed to hold events in Ireland, Britain and France by rotation. However, it was the Belgians who took the ball and ran with it. The Class is now managed from Belgium. 

At A Glance – Half Ton Classics Cup Winners

  • 2017 – Kinsale – Swuzzlebubble – Phil Plumtree – Farr 1977
  • 2016 – Falmouth – Swuzzlebubble – Greg Peck – Farr 1977
  • 2015 – Nieuwport – Checkmate XV – David Cullen – Humphreys 1985
  • 2014 – St Quay Portrieux – Swuzzlebubble – Peter Morton – Farr 1977
  • 2013 – Boulogne – Checkmate XV – Nigel Biggs – Humphreys 1985
  • 2011 – Cowes – Chimp – Michael Kershaw – Berret 1978
  • 2009 – Nieuwpoort – Général Tapioca – Philippe Pilate – Berret 1978
  • 2007 – Dun Laoghaire – Henri-Lloyd Harmony – Nigel Biggs – Humphreys 1980~
  • 2005 – Dinard – Gingko – Patrick Lobrichon – Mauric 1968
  • 2003 – Nieuwpoort – Général Tapioca – Philippe Pilate – Berret 1978

Featured Sailing School

INSS sidebutton

Featured Clubs

dbsc mainbutton
Howth Yacht Club
Kinsale Yacht Club
National Yacht Club
Royal Cork Yacht Club
Royal Irish Yacht club
Royal Saint George Yacht Club

Featured Brokers

leinster sidebutton

Featured Webcams

Featured Car Brands

subaru sidebutton

Featured Associations

ISA sidebutton dob
ICRA
isora sidebutton

Featured Events 2021

vdlr21 sidebutton

Featured Sailmakers

northsails sidebutton
uksails sidebutton

quantum sidebutton

Featured Chandleries

CHMarine Afloat logo
osm sidebutton
https://afloat.ie/resources/marine-industry-news/viking-marine

Featured Marinas

dlmarina sidebutton

Featured Blogs

W M Nixon - Sailing on Saturday
podcast sidebutton
mansfield sidebutton
BSB sidebutton
sellingboat sidebutton

Please show your support for Afloat by donating