HAM 318

At 33,515 gross tons, HAM 318 is the 16,963rd 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 5.6 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 360 dredgers held here, it ranks 5th by tonnage — larger than 99% of that group. Their median tonnage is 2,086 GT, and the largest tenth begin at 11,701 GT. The flag most often flown by this group is People's Republic of China (43 ships). The yard that appears most often against it is Royal IHC, with 21 hulls on record.

Netherlands is the country of registry for 1,546 vessels in this directory, of which HAM 318 is the 44th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (839 ships), and the median vessel measures 2,810 GT. Browse every ship flagged Netherlands.

Narrowing to both dimensions at once, this registry holds 42 dredgers flying the Netherlands flag, of which none is larger than HAM 318.

HAM 318 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 319th 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 85 vessels to Royal IHC, with a median tonnage of 9,125 GT, delivered between 1947 and 2024. See the rest of that yard’s output.

At 227.2 m overall, HAM 318 is 147.2 m longer than the 80.0 m median for dredgers on record.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9229556 this registry holds 68 other vessels, whose median build year is 2002 and which range from 1992 to 2013. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2001.

Its IMO number, 9229556, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 2×6 + 2×5 + 9×4 + 5×3 + 5×2 = 146 — and the last digit of that total, 6, must equal the seventh digit, 6. It does, so this number is well formed.