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Displaying items by tag: oceanographic survey

#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

The Star keelboat is a 6.9 metres (23 ft) one-design racing keelboat for two people designed by Francis Sweisguth in 1910.

The Star was an Olympic keelboat class from 1932 through to 2012, the last year keelboats appeared at the Summer Olympics at which Ireland's representatives were Peter O'Leary and David Burrows.

Ireland has performed well in the class internationally thanks to some Olympic campaigns including a bronze medal at the Star World Championships in 2000, won by Mark Mansfield and David O'Brien.

The boat is sloop-rigged, with a mainsail larger in proportional size than any other boat of its length. Unlike most modern racing boats, it does not use a spinnaker when sailing downwind. Instead, when running downwind a whisker pole is used to hold the jib out to windward for correct wind flow.

Early Stars were built from wood, but modern boats are of fibreglass and carbon construction.

The boat must weigh at least 671 kg (1,479 lb) with a maximum total sail area of 26.5 m2 (285 sq ft).

The Star class pioneered an unusual circular boom vang track, which allows the vang to effectively hold the boom down even when the boom is turned far outboard on a downwind run.

Another notable aspect of Star sailing is the extreme hiking position adopted by the crew and at times the helmsman, who normally use a harness to help hang low off the windward side of the boat with only their lower legs inside.

At A Glance – Star Specifications

Designer Francis Sweisguth
Year 1910
Crew 2 (Skipper + Crew)
S + 1.5 C ≤ 250 kg (550 lb)[1]
Draft 1.016 m (3 ft 4 in)
Hull Type keelboat
Hull weight ≥ 671 kg (1,479 lb)
(including keel)
LOA 6.922 m (22 ft 9 in)
LWL 4.724 m (15 ft 6 in)
Beam 1.734 m (5 ft 8 in) at deck
1.372 m (4 ft 6 in) at chine
Hull appendages
Keel/board type bulb keel
401.5 ± 7 kg (885 ± 15 lb)
Rig
Rig type sloop
Mast length 9.652 m (31 ft 8 in)
Sails
Mainsail area 20.5 m2 (221 sq ft)
Jib/genoa area  6.0 m2 (65 sq ft)
Upwind sail area ≤ 26.5 m2 (285 sq ft)

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