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RV Celtic Voyager of the Marine Institute, Ireland's national agency for marine research, development and innovation, has been working in south Dublin Bay this week, writes Jehan Ashmore.

The 31.4m ship to be replaced next year by a Spanish newbuild, to be named the RV Tom Crean (52.8m), has since the start of this week carried out ship-based training albeit for 'land-based' marine biology students given the lock-down restrictions.

Despite that, Dr. Simon Berrow and Mr. John Boyd of the Galway-Mayo Institute of Technology (GMIT) have been 'live-streaming' from on board the RV Celtic Voyager to their students at home.

According to a tweet on the M.I. website, the work has been an excellent run down of what's involved in offshore surveys. As close as the real thing as you can get, less the swell and the rain! 

The scene was observed by Afloat as the RV Celtic Voyager was in a south Dublin Bay prior to returning to the temporary base of Dun Laoghaire Harbour this afternoon. According to Met.ie, gale force 8-9 winds forecast tonight on the Irish Sea and Storm Force 10 off Wicklow Head and further south. 

Already in port at Carlisle Pier, the UK registered, Spanish owned trawler Magan D which had been adrift that arrived at the weekend. Also berthed but since yesterday, Dublin Array's proposed wind-farm project related ship, Fugro Mercator having been busy on geophysical surveys.

The GMIT has a Marine and Freshwater Research Centre where among the specialist research staff is Dr Simon Berrow, responsible for Marine mammals, seabirds and Environmental impact. Also on board, Mr. John Boyd's specialising in fisheries, seagoing operations and maritime training.

The vessels six day (at 'sea') training programme is scheduled to end this Saturday.

While today, the M.I. other larger research vessel, RV Celtic Explorer (65.5m) is working in waters considerably further offshore in the North Atlantic Ocean.

Afloat tracked RV Celtic Explorer some 400 nautical miles offshore of the western seaboard to the ship's homeport of Galway.

The deployment of the vessel is to support an Ocean & Climate survey across south Rockall Trough with the vessel due back to its homeport in around a month's time.

Published in Marine Science

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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