At 182 gross tons, American is the 81,476th 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 33 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 1,471 tugs held here, it ranks 1,069th by tonnage — larger than 15% 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.
United States is the country of registry for 2,278 vessels in this directory, of which American is the 1,436th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (977 ships), and the median vessel measures 1,706 GT. Browse every ship flagged United States.
Narrowing to both dimensions at once, this registry holds 239 tugs flying the United States flag, of which 158 are larger by tonnage.
American was built in 1982, making it 44 years old. It is one of 1,706 hulls in this registry delivered that year, a cohort whose median tonnage is 3,592 GT; within it this ship is the 1,588th largest. Across the whole of the 1980s the registry holds 13,213 vessels, median 3,004 GT. The median build year across the entire registry is 1995.
The registry attributes 1 vessels to Albert Ortis Boatbuilding, with a median tonnage of 182 GT, delivered between 1982 and 1982. See the rest of that yard’s output.
At 18.6 m overall, American is 13.7 m shorter than the 32.3 m median for tugs on record, with a beam of 8.0 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8851730 this registry holds 23 other vessels, whose median build year is 1981 and which range from 1956 to 1990. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1982.
Its IMO number, 8851730, carries its own check digit. The first six digits are weighted seven down to two and summed — 8×7 + 8×6 + 5×5 + 1×4 + 7×3 + 3×2 = 160 — and the last digit of that total, 0, must equal the seventh digit, 0. It does, so this number is well formed.
