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Open data · every figure carries its source

Largest in this registry
#53,247
of 84,014 with a recorded tonnage
Largest unclassified
#30,270
of 49,696 of this type with a recorded tonnage
Largest in its fleet
#2
of 2 in this fleet with a recorded tonnage
In brief
Thalassa is an oceanographic research vessel operated by the Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), the French Institute for Research of the Exploitation of the Sea.
Thalassa was launched in 1995 and commissioned to replace an eponymous ship of 1960.
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 2,803 gross tons, Thalassa is the 53,247th 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 2.1 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 58,086 vessels this registry holds no type classification for held here, it ranks 30,270th by tonnage — larger than 39% of that group. Their median tonnage is 5,358 GT, and the largest tenth begin at 54,309 GT. The flag most often flown by this group is Panama (5,698 ships). The yard that appears most often against it is HD Hyundai Mipo, with 615 hulls on record.
France is the country of registry for 517 vessels in this directory, of which Thalassa is the 207th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (313 ships), and the median vessel measures 2,161 GT. Browse every ship flagged France.
Narrowing to both dimensions at once, this registry holds 313 vessels this registry holds no type classification for flying the France flag, of which 89 are larger by tonnage.
Thalassa was built in 1996, making it 30 years old. It is one of 1,254 hulls in this registry delivered that year, a cohort whose median tonnage is 7,254 GT; within it this ship is the 859th largest. Across the whole of the 1990s the registry holds 12,006 vessels, median 4,956 GT. The median build year across the entire registry is 1995.
The registry attributes 1 vessels to Manche Industrie Marine, Dieppe, with a median tonnage of 2,803 GT, delivered between 1996 and 1996. See the rest of that yard’s output.
At 73.7 m overall, Thalassa is 41.3 m shorter than the 115.0 m median for vessels this registry holds no type classification for on record, with a beam of 14.9 m and a draft of 6.1 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9070307 this registry holds 53 other vessels, whose median build year is 1994 and which range from 1992 to 2016. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1996.
Its IMO number, 9070307, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 0×6 + 7×5 + 0×4 + 3×3 + 0×2 = 107 — and the last digit of that total, 7, must equal the seventh digit, 7. It does, so this number is well formed.
Nearest by tonnage among vessels this registry holds no type classification for
| Ship | Built | Gross tonnage |
|---|---|---|
| Monsaldale | 1905 | 2,805 |
| Turkul | 1971 | 2,804 |
| British Shield | 1979 | 2,804 |
| Thalassa (this ship) | 1996 | 2,803 |
| M. Vjal Samriddhi | 2018 | 2,802 |
| Sude S | 2009 | 2,802 |
| Manaqui |
Same fleet
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from French ship Thalassa on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy Ph. Saget, reused under CC BY-SA 3.0.
| 1921 |
| 2,802 |