Dd Vigor

At 24,856 gross tons, Dd Vigor is the 23,156th 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 4.1 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 12,935th by tonnage — larger than 74% 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.

Dd Vigor was built in 1985, making it 41 years old. It is one of 1,312 hulls in this registry delivered that year, a cohort whose median tonnage is 4,782 GT; within it this ship is the 224th 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 182.0 m overall, Dd Vigor is 67.0 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 8109034 this registry holds 38 other vessels, whose median build year is 1982 and which range from 1981 to 1985. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1985.

Its IMO number, 8109034, carries its own check digit. The first six digits are weighted seven down to two and summed — 8×7 + 1×6 + 0×5 + 9×4 + 0×3 + 3×2 = 104 — and the last digit of that total, 4, must equal the seventh digit, 4. It does, so this number is well formed.