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Displaying items by tag: RV Tonn

#marinescience – Minister of State with responsibility for Natural Resources at the Department of Communications, Energy & Natural Resources, Joe McHugh T.D., today formally commissioned the INFOMAR Programme's new survey vessel, naming her the RV TONN at the Poolbeg Yacht, Boat Club & Marina.

As part of Ireland's national marine mapping initiative, the INFOMAR programme carries out hydrographic & geophysical surveys of Irish territorial waters. It is a cooperative programme between the Geological Survey of Ireland and the Marine Institute and is funded by the Department of Communications, Energy and Natural Resources.

Minister McHugh said "The INFOMAR programme is unique among the various projects funded by my Department, DCENR, in that, for 6 - 8 months of the year, the Infomar team of marine survey specialists live and work among the Irish coastal communities around the entire coast of Ireland." The Minister went on to say one of the achievements of the INFOMAR programme is the focus on disseminating new information on the Irish offshore, which is available free on the http://www.infomar.ie/data/ website. The Minster added "A really good example of the applied use of INFOMAR data is the smartphone App produced jointly by the Irish Underwater Council and INFOMAR, which affords a user access to The Wild Atlantic Way/Dive & Snorkelling sample locations.

The RV Tonn, is named appropriately after the Irish for wave, as it both operates on the waves and uses sound waves to investigate the depth and nature of the seabed. It is a new state of the art vessel, only 8 metres in length, but purpose built to carry out very shallow survey work. It was built by Cheetah Marine in the Isle of Wight after an open tender process.

This new vessel, RV Tonn, will support the completion of the first phase of the Infomar Project's mapping of three priority Areas and 26 priority bays, by the end of 2015.

Welcoming the launch, Koen Verbruggen, Director of the Geological Survey of Ireland, said "Up-to-date advanced mapping, facilitates greater awareness of Irish marine opportunities."

Published in Marine Science
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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

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