Nathaniel B. Palmer

At 6,174 gross tons, Nathaniel B. Palmer is the 41,636th largest of the 84,014 vessels in this registry that report a tonnage. The median across that set is 5,994 GT. The largest measures 499,167 GT.

Among the 612 research / surveys held here, it ranks 82nd by tonnage — larger than 83% of that group. Their median tonnage is 2,180 GT, and the largest tenth begin at 9,452 GT. The flag most often flown by this group is United States (90 ships). The yard that appears most often against it is Wärtsilä, with 36 hulls on record.

United States is the country of registry for 2,278 vessels in this directory, of which Nathaniel B. Palmer is the 380th 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 90 research / surveys flying the United States flag, of which 3 are larger by tonnage.

Nathaniel B. Palmer was built in 1992, making it 34 years old. It is one of 1,130 hulls in this registry delivered that year, a cohort whose median tonnage is 3,228 GT; within it this ship is the 415th largest. Across the whole of the 1990s the registry holds 12,006 vessels, median 4,956 GT. The median build year across the entire registry is 1995.

The registry attributes 95 vessels to North American Shipbuilding, with a median tonnage of 2,912 GT, delivered between 1978 and 2018. See the rest of that yard’s output.

At 85.3 m overall, Nathaniel B. Palmer is 14.3 m longer than the 71.0 m median for research / surveys on record, with a beam of 18.3 m and a draft of 7.0 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9007257 this registry holds 63 other vessels, whose median build year is 1991 and which range from 1990 to 1995. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1992.

Its IMO number, 9007257, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 0×6 + 0×5 + 7×4 + 2×3 + 5×2 = 107 — and the last digit of that total, 7, must equal the seventh digit, 7. It does, so this number is well formed.