Synchronizing…
A public reference property of Baalvion
Open data · every figure carries its source

Research / survey
Operated by Bulgarian Academy of Sciences
Photo: ShockD · CC BY-SA 4.0 · file
No gross tonnage is recorded for this vessel, so it cannot be ranked by size. Rank is only shown where the underlying measurement exists.
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.
Bulgaria is the country of registry for 80 vessels in this directory. The most common class under that flag is vessels this registry holds no type classification for (55 ships), and the median vessel measures 7,230 GT. Browse every ship flagged Bulgaria.
Akademik was built in 1979, making it 47 years old. It is one of 1,718 hulls in this registry delivered that year, a cohort whose median tonnage is 2,382 GT. Across the whole of the 1970s the registry holds 17,331 vessels, median 2,774 GT. The median build year across the entire registry is 1995.
The registry attributes 205 vessels to Kuznia na Rybalskomu, with a median tonnage of 746 GT, delivered between 1963 and 2009. See the rest of that yard’s output.
At 55.5 m overall, Akademik is 15.5 m shorter than the 71.0 m median for research / surveys on record and a draft of 4.8 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8138463 this registry holds 44 other vessels, whose median build year is 1982 and which range from 1903 to 1991. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1979.
Its IMO number, 8138463, carries its own check digit. The first six digits are weighted seven down to two and summed — 8×7 + 1×6 + 3×5 + 8×4 + 4×3 + 6×2 = 133 — and the last digit of that total, 3, must equal the seventh digit, 3. It does, so this number is well formed.
Nearest by IMO number
| Ship | IMO | Built |
|---|---|---|
| Da Qing 231 | 8138451 | 1974 |
| Da Qing 232 | 8138449 | 1975 |
| Li Feng | 8138437 | 1974 |
| Svyatoy Pyotr | 8138499 | 1983 |
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 summaryNo English Wikipedia article is linked to this vessel, so no summary is shown.
PhotographBy ShockD, reused under CC BY-SA 4.0.