Seival

At 3,157 gross tons, Seival is the 51,000th 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 1.9 times smaller than the typical vessel on record here. The largest measures 499,167 GT.

Among the 1,471 tugs held here, it ranks 57th by tonnage — larger than 96% of that group. Their median tonnage is 393 GT, and the largest tenth begin at 1,733 GT. The flag most often flown by this group is United States (239 ships). The yard that appears most often against it is Damen Shipyards Gorinchem, with 62 hulls on record.

Russia is the country of registry for 2,810 vessels in this directory, of which Seival is the 920th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (830 ships), and the median vessel measures 2,293 GT. Browse every ship flagged Russia.

Narrowing to both dimensions at once, this registry holds 37 tugs flying the Russia flag, of which none is larger than Seival.

Seival was built in 2000, making it 26 years old. It is one of 1,296 hulls in this registry delivered that year, a cohort whose median tonnage is 8,737 GT; within it this ship is the 811th 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 20 vessels to Halifax Shipyard, with a median tonnage of 253 GT, delivered between 1950 and 2014. See the rest of that yard’s output.

At 75.0 m overall, Seival is 42.7 m longer than the 32.3 m median for tugs on record.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9199115 this registry holds 46 other vessels, whose median build year is 2000 and which range from 1998 to 2019. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2000.

Its IMO number, 9199115, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 1×6 + 9×5 + 9×4 + 1×3 + 1×2 = 155 — and the last digit of that total, 5, must equal the seventh digit, 5. It does, so this number is well formed.