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A public reference property of Baalvion
Open data · every figure carries its source
Largest in this registry
#71,893
of 84,014 with a recorded tonnage
Largest ro-ro
#742
of 799 of this type with a recorded tonnage
Fleet rank
—
No operator attributed to this ship
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
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 595 gross tons, Hidraferja is the 71,893rd 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 10 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 877 ro-ros held here, it ranks 742nd by tonnage — larger than 7% of that group. Their median tonnage is 7,395 GT, and the largest tenth begin at 34,011 GT. The flag most often flown by this group is Italy (62 ships). The yard that appears most often against it is Flensburger Schiffbau-Gesellschaft, with 16 hulls on record.
Norway is the country of registry for 3,032 vessels in this directory, of which Hidraferja is the 1,968th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (2,126 ships), and the median vessel measures 3,102 GT. Browse every ship flagged Norway.
Narrowing to both dimensions at once, this registry holds 22 ro-ros flying the Norway flag, of which 17 are larger by tonnage.
Hidraferja was built in 2001, making it 25 years old. It is one of 1,268 hulls in this registry delivered that year, a cohort whose median tonnage is 14,062 GT; within it this ship is the 1,058th largest. Across the whole of the 2000s the registry holds 18,605 vessels, median 9,957 GT. The median build year across the entire registry is 1995.
The registry attributes 60 vessels to Flekkefjord Slipp & Maskinfabrikk AS, with a median tonnage of 1,808 GT, delivered between 1961 and 2008. See the rest of that yard’s output.
At 49.0 m overall, Hidraferja is 76.0 m shorter than the 125.0 m median for ro-ros on record.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9237981 this registry holds 73 other vessels, whose median build year is 2002. That places this hull’s registration in the same part of the series.
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.
PhotographNo freely licensed photograph of this vessel is held, so none is shown.
Measurements
Its IMO number, 9237981, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 2×6 + 3×5 + 7×4 + 9×3 + 8×2 = 161 — and the last digit of that total, 1, must equal the seventh digit, 1. It does, so this number is well formed.
Nearest by tonnage among ro-ros
| Ship | Built | Gross tonnage |
|---|---|---|
| Reina Kleopatra | 1990 | 600 |
| Marco Polo 1 | 1983 | 598 |
| Grbalj | 2009 | 597 |
| Hidraferja (this ship) | 2001 | 595 |
| Julieta S | 2001 | 594 |
| Tourist Ferry Boat Secondo | 1969 | 586 |
| Theodora R | 1975 | 583 |

Paspaley 4
2001 · 1,220 GT · Australia