Seamount Explorer

At 671 gross tons, Seamount Explorer is the 70,574th 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 8.9 times smaller than 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 39,562nd by tonnage — larger than 20% 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.

New Zealand is the country of registry for 112 vessels in this directory, of which Seamount Explorer is the 44th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (64 ships), and the median vessel measures 551 GT. Browse every ship flagged New Zealand.

Narrowing to both dimensions at once, this registry holds 64 vessels this registry holds no type classification for flying the New Zealand flag, of which 24 are larger by tonnage.

Seamount Explorer was built in 1987, making it 39 years old. It is one of 819 hulls in this registry delivered that year, a cohort whose median tonnage is 1,937 GT; within it this ship is the 603rd 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.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8614211 this registry holds 16 other vessels, whose median build year is 1987 and which range from 1986 to 1990. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1987.

Its IMO number, 8614211, carries its own check digit. The first six digits are weighted seven down to two and summed — = 121 — and the last digit of that total, 1, must equal the seventh digit, 1. It does, so this number is well formed.