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Open data · every figure carries its source

Fishing vessel
Operated by Technical University of Denmark
Photo: © 2004 by Tomasz Sienicki [user: tsca, mail: tomasz.sienicki at gmail.com] · CC BY 2.5 pl · file
Largest in this registry
#54,488
of 84,014 with a recorded tonnage
Largest fishing vessel
#276
of 2,302 of this type with a recorded tonnage
Largest in its fleet
#1
of 1 in this fleet with a recorded tonnage
In brief
Dana (IV) is the primary Danish research vessel. It entered service in 1981, where it replaced the research vessel Dana (III). Originally built for the Danish Fisheries and Marine Research, but transferred to the National Institute for Aquatic Resources under the Danish Technical University in 2007.
The ship is rigged as a deep sea stern trawler and fully equipped with facilities for fisheries and hydrographical research. Primary areas of operation are the Baltic Sea, North Sea and Greenland.
It is expected to remain in active service until replaced by a new research vessel, Dana (V), in 2027 from Construcciones Navales P. Freire, S.A in Spain.
Vessel particulars
Every value is as recorded in the source. Blanks are values the source does not hold — none is estimated from a sister ship or a class average.
Identification
Construction
Measurements
In context
Every figure in this section is a count, a rank or a percentile over vessels actually held in this registry — not over the world fleet, which is larger. Nothing here is estimated.
At 2,545 gross tons, Dana is the 54,488th largest of the 84,014 vessels in this registry that report a tonnage. The median across that set is 5,994 GT, so this hull is about 2.4 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 2,411 fishing vessels held here, it ranks 276th by tonnage — larger than 88% of that group. Their median tonnage is 738 GT, and the largest tenth begin at 2,773 GT. The flag most often flown by this group is Russia (797 ships). The yard that appears most often against it is Kuznia na Rybalskomu, with 175 hulls on record.
Denmark is the country of registry for 849 vessels in this directory, of which Dana is the 461st largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (495 ships), and the median vessel measures 4,678 GT. Browse every ship flagged Denmark.
Narrowing to both dimensions at once, this registry holds 11 fishing vessels flying the Denmark flag, of which none is larger than Dana.
Dana was built in 1980, making it 46 years old. It is one of 1,736 hulls in this registry delivered that year, a cohort whose median tonnage is 2,301 GT; within it this ship is the 714th largest. Across the whole of the 1980s the registry holds 13,213 vessels, median 3,004 GT. The median build year across the entire registry is 1995.
The registry attributes 61 vessels to Aarhus Flydedok, with a median tonnage of 3,206 GT, delivered between 1960 and 2008. See the rest of that yard’s output.
At 78.0 m overall, Dana is 24.0 m longer than the 54.0 m median for fishing vessels on record, with a beam of 14.7 m and a draft of 5.9 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 7912680 this registry holds 51 other vessels, whose median build year is 1980 and which range from 1979 to 1983. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1980.
Its IMO number, 7912680, carries its own check digit. The first six digits are weighted seven down to two and summed — 7×7 + 9×6 + 1×5 + 2×4 + 6×3 + 8×2 = 150 — and the last digit of that total, 0, must equal the seventh digit, 0. It does, so this number is well formed.
Same yard, same years
No ship class is recorded for this vessel, so these are not asserted to be sister ships — they are contemporaries from the same builder, shown because that is what the data supports.
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from Dana (1980 ship) on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy © 2004 by Tomasz Sienicki [user: tsca, mail: tomasz.sienicki at gmail.com], reused under CC BY 2.5 pl.
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