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Displaying items by tag: hydrographic survey

#MarineNotice - The latest Marine Notice from the DTTAS advises all seafarers off the West of Ireland that a hydrographic and geophysical survey operation will be carried out in Galway Bay from today Friday 22 February till Tuesday 26 February as part of the INFOMAR programme.

The RV Celtic Voyager (Call sign EIQN) is expected to carry out the survey operations. The vessel will be towing different senors from time to time with a cable of up to 150m in length for magnetometer and sidescan sonar.

The vessel will display appropriate lights and markers, and will be listening on VHF CH 16 throughout the project.

Full details, including co-ordinates, are included in Marine Notice No 08 of 2013, a PDF of which is available to read or download HERE.

Published in Marine Warning

#MARINE WARNING - The latest Marine Notice from the DTTAS advises all seafarers in the Irish Sea between north Dublin and north Wales to give a wide berth to the hydrographic and oceanographic survey operation in the area this week.

The SV Bibby Tethra (callsign 2EGF8) commenced survey operations yesterday (Monday 16 January) from offshore at North Beach in Rush to approximately 16 miles offshore north of Anglesey. The survey is scheduled for seven days, subject to weather delays.

The vessel will operate on a 24-hour basis, displaying appropriate day shapes and lights during survey operations, and will transmit an AIS signal. The vessel will be keeping a listening watch on VHF Channel 16 at all times during the operations.

Survey operations will involve towing survey equipment up to 100m astern of the vessel along pre-defined survey lines, which will restrict the vessel’s ability to manoeuvre.

Details of the survey area are included in a PDF of Marine Notice No 2 of 2012, which is available to read or download HERE.

Published in Marine Warning
The latest Marine Notice from the DTTAS advises all seafarers near Dundalk Bay and Carlingford Lough to give a wide berth to the hydrographic and oceanographic survey operation in the area this month.
The RV Celtic Voyager (callsign EIQN) will be carrying out survey operations between Kildeel and Clogherhead till 15 September.
The vessel will display lights and markers and will be towing different sensors from time to time with a single cable of up to 100m long.
Deployment of water level recording equipment will be necessary on the seabed at certain locations. These will be marked with appropriate buoys and lights as well as Irish Coast Guard radio notices.
Details of the survey area are included in a PDF of Marine Notice No 44 of 2011, which is available to read or download HERE.

The latest Marine Notice from the DTTAS advises all seafarers near Dundalk Bay and Carlingford Lough to give a wide berth to the hydrographic and oceanographic survey operation in the area this month.

The RV Celtic Voyager (callsign EIQN) will be carrying out survey operations between Kildeel and Clogherhead till 15 September.

The vessel will display lights and markers and will be towing different sensors from time to time with a single cable of up to 100m long.   

Deployment of water level recording equipment will be necessary on the seabed at certain locations. These will be marked with appropriate buoys and lights as well as Irish Coast Guard radio notices.

Details of the survey area are included in a PDF of Marine Notice No 44 of 2011, which is available to read or download HERE.

Published in Marine Warning
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About the ILCA/Laser Dinghy

The ILCA, formerly known as the Laser, is the most produced boat in the world, with 220,000 units built since 1971.

It's easy to see why the single-handed dinghy has won the title of the most widely distributed boat of all time.

The Laser is a one-design dinghy, the hulls being identical but three rigs that can be used according to the size and weight of the sailor.

The class is international, with sailors from 120 countries. The boat has also been an Olympic class since 1996, being both the men's and women's singlehanded dinghy.

Three rigs are recognised by the International Laser Class Association (ILCA):

  • ILCA 4: sail of 4.70m2
  • ILCA 6: sail of 5.76 m2
  • ILCA 7: sail of 7.06 m2

At A Glance – Laser Dinghy Specifications

Designer Bruce Kirby & Ian Bruce

Year 1969

Crew 1
Draft 0.787 m (2 ft 7.0 in)
Hull weight 58.97 kg (130.0 lb)
LOA 4.2 m (13 ft 9 in)
LWL 3.81 m (12 ft 6 in)
Beam 1.39 m (4 ft 7 in)
Mainsail area 7.06 m2 (76.0 sq ft)

Racing D-PN 91.1 RYA PN 1088 PHRF 217

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