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

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.
Germany is the country of registry for 885 vessels in this directory. The most common class under that flag is vessels this registry holds no type classification for (446 ships), and the median vessel measures 916 GT. Browse every ship flagged Germany.
Narrowing to both dimensions at once, this registry holds 446 vessels this registry holds no type classification for flying the Germany flag.
John Bluhm was built in 1957, making it 69 years old. It is one of 261 hulls in this registry delivered that year, a cohort whose median tonnage is 1,300 GT. Across the whole of the 1950s the registry holds 2,005 vessels, median 960 GT. The median build year across the entire registry is 1995.
The registry attributes 533 vessels to Pella Sietas, with a median tonnage of 3,999 GT, delivered between 1914 and 2020. See the rest of that yard’s output.
At 51.1 m overall, John Bluhm is 63.9 m shorter than the 115.0 m median for vessels this registry holds no type classification for on record.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 5177078 this registry holds 9 other vessels, whose median build year is 1955 and which range from 1948 to 1957. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1957.
Its IMO number, 5177078, carries its own check digit. The first six digits are weighted seven down to two and summed — 5×7 + 1×6 + 7×5 + 7×4 + 0×3 + 7×2 = 118 — and the last digit of that total, 8, must equal the seventh digit, 8. It does, so this number is well formed.
Nearest by IMO number
| Ship | IMO | Built |
|---|---|---|
| Julius Schindler | 5177080 | 1955 |
| Julius Fučík | 5177054 | 1949 |
| Julianka | 5176957 | 1951 |
| IMO 5177339 | 5177339 | 1948 |
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 Jansen/Schiffsfotos / Sjöhistoriska museet, reused under CC BY-SA 4.0.