Vanna C

At 355 gross tons, Vanna C is the 76,769th 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 17 times smaller than the typical vessel on record here. The largest measures 499,167 GT.

Among the 1,471 tugs held here, it ranks 694th by tonnage — larger than 45% 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.

Italy is the country of registry for 918 vessels in this directory, of which Vanna C is the 701st largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (488 ships), and the median vessel measures 4,975 GT. Browse every ship flagged Italy.

Narrowing to both dimensions at once, this registry holds 37 tugs flying the Italy flag, of which 17 are larger by tonnage.

Vanna 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 2,238th 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 36 vessels to Cantieri Aeronautici e Navali Triestini, with a median tonnage of 39,385 GT, delivered between 1972 and 2007. See the rest of that yard’s output.

At 22.0 m overall, Vanna C is 10.3 m shorter than the 32.3 m median for tugs on record.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9364502 this registry holds 72 other vessels, whose median build year is 2006 and which range from 2004 to 2018. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2007.

Its IMO number, 9364502, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 3×6 + 6×5 + 4×4 + 5×3 + 0×2 = 142 — and the last digit of that total, 2, must equal the seventh digit, 2. It does, so this number is well formed.