At 693 gross tons, OSG Enterprise is the 70,143rd 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 8.6 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 1,471 tugs held here, it ranks 345th by tonnage — larger than 73% 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 OSG Enterprise is the 1,067th 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 45 are larger by tonnage.
OSG Enterprise was built in 1977, making it 49 years old. It is one of 1,791 hulls in this registry delivered that year, a cohort whose median tonnage is 5,622 GT; within it this ship is the 1,356th largest. Across the whole of the 1970s the registry holds 17,331 vessels, median 2,774 GT. The median build year across the entire registry is 1995.
The registry attributes 29 vessels to Main Iron Works, with a median tonnage of 207 GT, delivered between 1966 and 2009. See the rest of that yard’s output.
At 39.9 m overall, OSG Enterprise is 7.6 m longer than the 32.3 m median for tugs on record and a draft of 5.9 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 7717028 this registry holds 55 other vessels, whose median build year is 1979 and which range from 1977 to 1982. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1977.
Its IMO number, 7717028, carries its own check digit. The first six digits are weighted seven down to two and summed — 7×7 + 7×6 + 1×5 + 7×4 + 0×3 + 2×2 = 128 — and the last digit of that total, 8, must equal the seventh digit, 8. It does, so this number is well formed.
