Normanna

At 6,877 gross tons, Normanna is the 40,431st largest of the 84,014 vessels in this registry that report a tonnage. The median across that set is 5,994 GT. The largest measures 499,167 GT.

Among the 2,402 tankers held here, it ranks 1,186th by tonnage — larger than 48% of that group. Their median tonnage is 8,256 GT, and the largest tenth begin at 42,340 GT. The flag most often flown by this group is Panama (219 ships). The yard that appears most often against it is HD Hyundai Mipo, with 175 hulls on record.

Normanna was built in 1996, making it 30 years old. It is one of 1,254 hulls in this registry delivered that year, a cohort whose median tonnage is 7,254 GT; within it this ship is the 611th 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 18 vessels to Cantiere Navale de Poli S.p.A., with a median tonnage of 5,440 GT, delivered between 1972 and 2008. See the rest of that yard’s output.

At 126.7 m overall, Normanna is 12.3 m shorter than the 139.0 m median for tankers on record, with a beam of 19.0 m and a draft of 7.9 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9125279 this registry holds 69 other vessels, whose median build year is 1996 and which range from 1995 to 1998. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1996.

Its IMO number, 9125279, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 1×6 + 2×5 + 5×4 + 2×3 + 7×2 = 119 — and the last digit of that total, 9, must equal the seventh digit, 9. It does, so this number is well formed.