RV Cirolana

RV Cirolana was a fisheries research vessel used by the Centre for Environment, Fisheries and Aquaculture Science and originally built for the Ministry of Agriculture, Fisheries and Food (United Kingdom).[2] She was initially intended to replace the RV Ernest Holt operating in arctic waters around Bear Island (Norway) and Iceland, but following the Cod Wars spent most of her working life conducting fisheries surveys in the North Sea, Irish Sea and English Channel. For the first part of her career RV Cirolana was based in the fishing port of Grimsby, but after bridge and channel dredging work improved the depth, it was deemed acceptable to bring her to Lowestoft.

RV Cirolana during the early 1990s
History
United Kingdom
Name: RV Cirolana
Owner: Ministry of Agriculture, Fisheries and Food (United Kingdom)
Ordered: late 1967
Builder: Ferguson Shipbuilders, Port Glasgow[1]
Yard number: 454
Launched: 17/09/1969 [1]
Commissioned: July 1970
Decommissioned: c. 2003
Homeport:
Identification: IMO number: 6928711
Fate: Broken Up 11/12/2003 at Klaipeda
General characteristics
Displacement: 1,919 t (1,889 long tons)[1]
Length: 72.54 m (238 ft 0 in)[1]
Beam: 14.02 m (46 ft 0 in)[1]
Draught: 5.04 m (16 ft 6 in)[1]
Speed: 16 knots (18 mph; 30 km/h)[1]
Endurance: 10,000 mi (16,000 km) at 14 knots (16 mph; 26 km/h)[1]
Complement: Up to 48 crew and scientists[1]

Her engines etc were housed in a sound and vibration proof enclosure which was supported on many pneumatic dampers. She had main electric propulsion motors which powered the screws. All ancillaries were also damped using anti-vibration mountings. All this damping was aimed at reducing noise/vibrations through the superstructure to enable the ability to conduct acoustic surveys of fish populations .

She was built in 1969, by Ferguson Shipbuilders, and delivered in 1970.[1][3] She was placed out of service in approximately 2003 and replaced by RV Cefas Endeavour.[4]

On Friday 24 June 1977 RV Cirolana participated in the Silver Jubilee Fleet Review at Spithead in the Solent [5]

Service as a fisheries research vessel

RV Cirolana was the principle fisheries research vessel employed by the Ministry of Agriculture, Fisheries and Food (United Kingdom) throughout the period 1970 to 2003. She was used extensively for fish stock surveys and oceanographic investigations.

In the early 1970s RV Cirolana conducted extensive surveys around Greenland, Iceland and the Faroe Islands as well as several trips to the Labrador Sea. In 1973-4, she carried out deep-water surveys down to depths as great as 1200m along the Atlantic continental slope to the west of the British Isles and at banks further out in the Atlantic - Rockall, Hatton, Rosemary Bank and Bill Bailey's.[2]

There were ongoing issues with Cirolana's impellers being fouled by floating netting, which would then require that the ship navigate back to a safe harbour on bow thrusters alone, followed by the hire of professional divers to remove the obstruction.[6]

In 1999, and again in 2000, she rediscovered a post-medieval wreck at 51.474930N, 5.200480W. The wreck was first reported in July 1945, and is 84m long.[7]

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See also


References
  1. "Recently de-commissioned and newly available". Atlantic Marine & Aviation. Retrieved 2 May 2016.
  2. MAFF (1992). The Directorate of Fisheries Research: Its Origins and Development. Ministry of Agriculture, Fisheries and Food, Lowestoft. 332pp.
  3. Davenport, Benjamin; Warnes, Christopher. "The Post War Years" (PDF). Cefas.
  4. "Marine research ship comes home". www.eurocbc.org. Retrieved 2 May 2016.
  5. "Silver Jubilee Fleet Review - Official Souvenir Programme" (PDF). Retrieved 19 May 2018.
  6. Fanshawe, Tim; Everard, Mark (eds.). "The Impacts of Marine Litter" (PDF). Marine Pollution Monitoring Management Group. p. 17. Retrieved 2 May 2016.
  7. "Unnamed Wreck". www.coflein.gov.uk. Royal Commission on the Ancient and Historical Monuments of Wales. Retrieved 2 May 2016. The wreck was lies on its side, intact, between two sandwaves, and with its keel was orientated 075/255 degrees. The length is 84m and depth of deck to keel being 20m. The wreck retains a height of 8.4m above the seabed.
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