Nancy Knutsen

At 51,161 gross tons, Nancy Knutsen is the 9,651st 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 8.5 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 3,060 oil tankers held here, it ranks 995th by tonnage — larger than 67% of that group. Their median tonnage is 22,184 GT, and the largest tenth begin at 149,274 GT. The flag most often flown by this group is Panama (301 ships). The yard that appears most often against it is HD Hyundai Mipo, with 190 hulls on record.

Nancy Knutsen was built in 1993, making it 33 years old. It is one of 1,073 hulls in this registry delivered that year, a cohort whose median tonnage is 3,586 GT; within it this ship is the 117th 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 46 vessels to Kvaerner Masa-Yards, with a median tonnage of 70,367 GT, delivered between 1990 and 2004. See the rest of that yard’s output.

At 242.4 m overall, Nancy Knutsen is 63.4 m longer than the 179.0 m median for oil tankers on record and a draft of 19.5 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9020699 this registry holds 51 other vessels, whose median build year is 1991 and which range from 1990 to 1994. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1993.

Its IMO number, 9020699, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 0×6 + 2×5 + 0×4 + 6×3 + 9×2 = 109 — and the last digit of that total, 9, must equal the seventh digit, 9. It does, so this number is well formed.