Seaspan Bellwether

At 113,042 gross tons, Seaspan Bellwether is the 2,532nd 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 19 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 3,881 container ships held here, it ranks 447th by tonnage — larger than 88% 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.

People's Republic of China is the country of registry for 3,427 vessels in this directory, of which Seaspan Bellwether is the 26th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (1,851 ships), and the median vessel measures 10,532 GT. Browse every ship flagged People's Republic of China.

Narrowing to both dimensions at once, this registry holds 129 container ships flying the People's Republic of China flag, of which 8 are larger by tonnage.

Seaspan Bellwether was built in 2015, making it 11 years old. It is one of 1,804 hulls in this registry delivered that year, a cohort whose median tonnage is 25,303 GT; within it this ship is the 89th largest. Across the whole of the 2010s the registry holds 20,111 vessels, median 23,456 GT. The median build year across the entire registry is 1995.

The registry attributes 301 vessels to Jiangsu Yangzi Xinfu Shipbuilding, with a median tonnage of 44,127 GT, delivered between 2008 and 2025. See the rest of that yard’s output.

At 337.0 m overall, Seaspan Bellwether is 115.4 m longer than the 221.6 m median for container ships on record and a draft of 15.5 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9713363 this registry holds 65 other vessels, whose median build year is 2015 and which range from 2014 to 2017. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2015.

Its IMO number, 9713363, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 7×6 + 1×5 + 3×4 + 3×3 + 6×2 = 143 — and the last digit of that total, 3, must equal the seventh digit, 3. It does, so this number is well formed.