Emerald

At 18,231 gross tons, Emerald is the 27,863rd 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 3.0 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 58,086 vessels this registry holds no type classification for held here, it ranks 15,601st by tonnage — larger than 69% of that group. Their median tonnage is 5,358 GT, and the largest tenth begin at 54,309 GT. The flag most often flown by this group is Panama (5,698 ships). The yard that appears most often against it is HD Hyundai Mipo, with 615 hulls on record.

Nigeria is the country of registry for 355 vessels in this directory, of which Emerald is the 26th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (233 ships), and the median vessel measures 1,530 GT. Browse every ship flagged Nigeria.

Narrowing to both dimensions at once, this registry holds 233 vessels this registry holds no type classification for flying the Nigeria flag, of which 8 are larger by tonnage.

Emerald was built in 1980, making it 46 years old. It is one of 1,736 hulls in this registry delivered that year, a cohort whose median tonnage is 2,301 GT; within it this ship is the 187th largest. Across the whole of the 1980s the registry holds 13,213 vessels, median 3,004 GT. The median build year across the entire registry is 1995.

At 173.0 m overall, Emerald is 58.0 m longer 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 7921980 this registry holds 60 other vessels, whose median build year is 1980 and which range from 1979 to 1995. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1980.

Its IMO number, 7921980, carries its own check digit. The first six digits are weighted seven down to two and summed — = 160 — and the last digit of that total, 0, must equal the seventh digit, 0. It does, so this number is well formed.