Tirranna

At 71,673 gross tons, Tirranna is the 6,501st 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 12 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 485 car carriers held here, it ranks 25th by tonnage — larger than 94% of that group. Their median tonnage is 49,792 GT, and the largest tenth begin at 68,871 GT. The flag most often flown by this group is Panama (132 ships). The yard that appears most often against it is Shin Kurushima Dockyard, with 41 hulls on record.

Norway is the country of registry for 3,032 vessels in this directory, of which Tirranna is the 117th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (2,126 ships), and the median vessel measures 3,102 GT. Browse every ship flagged Norway.

Narrowing to both dimensions at once, this registry holds 20 car carriers flying the Norway flag, of which 2 are larger by tonnage.

Tirranna was built in 2009, making it 17 years old. It is one of 2,834 hulls in this registry delivered that year, a cohort whose median tonnage is 11,673 GT; within it this ship is the 300th largest. Across the whole of the 2000s the registry holds 18,605 vessels, median 9,957 GT. The median build year across the entire registry is 1995.

The registry attributes 1,090 vessels to Hanwha Ocean, with a median tonnage of 84,214 GT, delivered between 1982 and 2025. See the rest of that yard’s output.

At 232.0 m overall, Tirranna is 38.1 m longer than the 193.9 m median for car carriers on record, with a beam of 32.6 m and a draft of 11.3 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9377523 this registry holds 69 other vessels, whose median build year is 2008 and which range from 2005 to 2011. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2009.

Its IMO number, 9377523, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 3×6 + 7×5 + 7×4 + 5×3 + 2×2 = 163 — and the last digit of that total, 3, must equal the seventh digit, 3. It does, so this number is well formed.