At 16,562 gross tons, Boa Sub C is the 29,570th 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 2.8 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 1,423 offshore supplys held here, it ranks 28th by tonnage — larger than 98% of that group. Their median tonnage is 2,061 GT, and the largest tenth begin at 4,961 GT. The flag most often flown by this group is United States (283 ships). The yard that appears most often against it is North American Shipbuilding, with 55 hulls on record.
Norway is the country of registry for 3,032 vessels in this directory, of which Boa Sub C is the 601st 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 57 offshore supplys flying the Norway flag, of which 3 are larger by tonnage.
Boa Sub C was built in 2007, making it 19 years old. It is one of 2,469 hulls in this registry delivered that year, a cohort whose median tonnage is 8,473 GT; within it this ship is the 917th 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 24 vessels to Factorías Vulcano, with a median tonnage of 7,805 GT, delivered between 1970 and 2011. See the rest of that yard’s output.
At 138.0 m overall, Boa Sub C is 70.9 m longer than the 67.1 m median for offshore supplys on record.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9275153 this registry holds 59 other vessels, whose median build year is 2004 and which range from 2002 to 2014. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2007.
Its IMO number, 9275153, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 2×6 + 7×5 + 5×4 + 1×3 + 5×2 = 143 — and the last digit of that total, 3, must equal the seventh digit, 3. It does, so this number is well formed.
