Tjiwangi

At 9,000 gross tons, Tjiwangi is the 37,408th 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 1.5 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 58,086 vessels this registry holds no type classification for held here, it ranks 21,342nd by tonnage — larger than 57% of that group. Their median tonnage is 5,358 GT, and the largest tenth begin at 54,309 GT. The flag most often flown by this group is Panama (5,698 ships). The yard that appears most often against it is HD Hyundai Mipo, with 615 hulls on record.

Tjiwangi was built in 1950, making it 76 years old. It is one of 153 hulls in this registry delivered that year, a cohort whose median tonnage is 555 GT; within it this ship is the 6th largest. Across the whole of the 1950s the registry holds 2,005 vessels, median 960 GT. The median build year across the entire registry is 1995.

The registry attributes 76 vessels to Van der Giessen de Noord, with a median tonnage of 11,335 GT, delivered between 1944 and 2003. See the rest of that yard’s output.

At 146.0 m overall, Tjiwangi is 31.0 m longer than the 115.0 m median for vessels this registry holds no type classification for on record, with a beam of 19.2 m and a draft of 7.0 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 5362582 this registry holds 13 other vessels, whose median build year is 1951 and which range from 1937 to 1961. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1950.

Its IMO number, 5362582, carries its own check digit. The first six digits are weighted seven down to two and summed — 5×7 + 3×6 + 6×5 + 2×4 + 5×3 + 8×2 = 122 — and the last digit of that total, 2, must equal the seventh digit, 2. It does, so this number is well formed.