IMO 8219841

At 13,476 gross tons, IMO 8219841 is the 32,115th 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 2.2 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 3,881 container ships held here, it ranks 2,821st by tonnage — larger than 24% of that group. Their median tonnage is 33,698 GT, and the largest tenth begin at 140,096 GT. The flag most often flown by this group is Liberia (498 ships). The yard that appears most often against it is HD Hyundai Heavy Industries, with 348 hulls on record.

IMO 8219841 was built in 1983, making it 43 years old. It is one of 1,578 hulls in this registry delivered that year, a cohort whose median tonnage is 3,112 GT; within it this ship is the 400th 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.

The registry attributes 97 vessels to Schichau Seebeckwerft, with a median tonnage of 16,236 GT, delivered between 1909 and 2011. See the rest of that yard’s output.

At 162.0 m overall, IMO 8219841 is 59.6 m shorter than the 221.6 m median for container ships on record.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8219841 this registry holds 37 other vessels, whose median build year is 1984 and which range from 1982 to 1987. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1983.

Its IMO number, 8219841, carries its own check digit. The first six digits are weighted seven down to two and summed — 8×7 + 2×6 + 1×5 + 9×4 + 8×3 + 4×2 = 141 — and the last digit of that total, 1, must equal the seventh digit, 1. It does, so this number is well formed.