At 3,243 gross tons, Atlantis II is the 50,693rd 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 1.8 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 311 yachts held here, it ranks 54th by tonnage — larger than 81% of that group. Their median tonnage is 1,352 GT, and the largest tenth begin at 5,565 GT. The flag most often flown by this group is Cayman Islands (101 ships). The yard that appears most often against it is Lürssen, with 27 hulls on record.
Atlantis II was built in 1981, making it 45 years old. It is one of 1,653 hulls in this registry delivered that year, a cohort whose median tonnage is 3,186 GT; within it this ship is the 700th 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.
At 116.0 m overall, Atlantis II is 50.8 m longer than the 65.2 m median for yachts on record, with a beam of 14.0 m and a draft of 4.2 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 1000667 this registry holds 29 other vessels, whose median build year is 1983 and which range from 1934 to 1992. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1981.
Its IMO number, 1000667, carries its own check digit. The first six digits are weighted seven down to two and summed — 1×7 + 0×6 + 0×5 + 0×4 + 6×3 + 6×2 = 37 — and the last digit of that total, 7, must equal the seventh digit, 7. It does, so this number is well formed.
