At 25,742 gross tons, USNS John Lenthall is the 22,501st 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 4.3 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 611 naval / patrols held here, it ranks 13th by tonnage — larger than 91% of that group. Their median tonnage is 1,325 GT, and the largest tenth begin at 23,606 GT. The flag most often flown by this group is United States (136 ships). The yard that appears most often against it is Austal, with 33 hulls on record.
United States is the country of registry for 2,278 vessels in this directory, of which USNS John Lenthall is the 212th 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 136 naval / patrols flying the United States flag, of which 4 are larger by tonnage.
USNS John Lenthall was built in 1987, making it 39 years old. It is one of 819 hulls in this registry delivered that year, a cohort whose median tonnage is 1,937 GT; within it this ship is the 129th 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 59 vessels to Avondale Shipyard, with a median tonnage of 25,742 GT, delivered between 1945 and 2006. See the rest of that yard’s output.
At 206.5 m overall, USNS John Lenthall is 120.0 m longer than the 86.5 m median for naval / patrols on record, with a beam of 97.0 m and a draft of 35.0 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8325547 this registry holds 45 other vessels, whose median build year is 1984 and which range from 1965 to 1998. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1987.
Its IMO number, 8325547, carries its own check digit. The first six digits are weighted seven down to two and summed — 8×7 + 3×6 + 2×5 + 5×4 + 5×3 + 4×2 = 127 — and the last digit of that total, 7, must equal the seventh digit, 7. It does, so this number is well formed.
