At 359 gross tons, IMO 9183398 is the 76,694th 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 17 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 1,471 tugs held here, it ranks 683rd by tonnage — larger than 46% of that group. Their median tonnage is 393 GT, and the largest tenth begin at 1,733 GT. The flag most often flown by this group is United States (239 ships). The yard that appears most often against it is Damen Shipyards Gorinchem, with 62 hulls on record.
Germany is the country of registry for 885 vessels in this directory, of which IMO 9183398 is the 471st largest by tonnage. 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 70 tugs flying the Germany flag, of which 27 are larger by tonnage.
IMO 9183398 was built in 1998, making it 28 years old. It is one of 1,367 hulls in this registry delivered that year, a cohort whose median tonnage is 7,381 GT; within it this ship is the 1,223rd 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 44 vessels to Hitzler Werft, with a median tonnage of 548 GT, delivered between 1955 and 2001. See the rest of that yard’s output.
At 30.6 m overall, IMO 9183398 is 1.7 m shorter than the 32.3 m median for tugs on record.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9183398 this registry holds 69 other vessels, whose median build year is 1999 and which range from 1991 to 2001. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1998.
Its IMO number, 9183398, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 1×6 + 8×5 + 3×4 + 3×3 + 9×2 = 148 — and the last digit of that total, 8, must equal the seventh digit, 8. It does, so this number is well formed.
