Ailsa Craig I

At 150,704 gross tons, Ailsa Craig I is the 1,451st 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 25 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 2,402 tankers held here, it ranks 33rd by tonnage — larger than 99% 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.

Panama is the country of registry for 9,598 vessels in this directory, of which Ailsa Craig I is the 230th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (5,698 ships), and the median vessel measures 18,203 GT. Browse every ship flagged Panama.

Narrowing to both dimensions at once, this registry holds 219 tankers flying the Panama flag, of which 6 are larger by tonnage.

The registry attributes 240 vessels to IHI Marine United, with a median tonnage of 52,902 GT, delivered between 1963 and 2013. See the rest of that yard’s output.

At 343.0 m overall, Ailsa Craig I is 204.0 m longer than the 139.0 m median for tankers on record.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8907319 this registry holds 75 other vessels, whose median build year is 1990 and which range from 1989 to 1994. That places this hull’s registration in the same part of the series; no build year is recorded for this vessel itself.

Its IMO number, 8907319, carries its own check digit. The first six digits are weighted seven down to two and summed — 8×7 + 9×6 + 0×5 + 7×4 + 3×3 + 1×2 = 149 — and the last digit of that total, 9, must equal the seventh digit, 9. It does, so this number is well formed.