HAM 316

At 9,760 gross tons, HAM 316 is the 36,324th 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 1.6 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 360 dredgers held here, it ranks 48th by tonnage — larger than 86% 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 316 is the 190th 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 5 are larger by tonnage.

HAM 316 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 601st 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 21 vessels to Verolme Scheepswerf Heusden, with a median tonnage of 7,950 GT, delivered between 1972 and 1998. See the rest of that yard’s output.

At 128.5 m overall, HAM 316 is 48.5 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 9160449 this registry holds 62 other vessels, whose median build year is 1998 and which range from 1996 to 2007. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1998.

Its IMO number, 9160449, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 1×6 + 6×5 + 0×4 + 4×3 + 4×2 = 119 — and the last digit of that total, 9, must equal the seventh digit, 9. It does, so this number is well formed.