Woollahra

At 12,683 gross tons, Woollahra is the 32,727th 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 2.1 times the typical vessel on record here. The largest measures 499,167 GT.

Among the 6,242 general cargos held here, it ranks 462nd by tonnage — larger than 92% of that group. Their median tonnage is 2,963 GT, and the largest tenth begin at 10,970 GT. The flag most often flown by this group is Panama (565 ships). The yard that appears most often against it is Cestné a Stavebné Mechanizmy Tisovec, with 137 hulls on record.

Woollahra was built in 1967, making it 59 years old. It is one of 496 hulls in this registry delivered that year, a cohort whose median tonnage is 757 GT; within it this ship is the 17th largest. Across the whole of the 1960s the registry holds 4,074 vessels, median 844 GT. The median build year across the entire registry is 1995.

The registry attributes 90 vessels to Eriksbergs Mekaniska Verkstad, with a median tonnage of 11,582 GT, delivered between 1907 and 1978. See the rest of that yard’s output.

At 178.5 m overall, Woollahra is 77.5 m longer than the 101.0 m median for general cargos on record.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 6705353 this registry holds 14 other vessels, whose median build year is 1967 and which range from 1966 to 1967. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1967.

Its IMO number, 6705353, carries its own check digit. The first six digits are weighted seven down to two and summed — 6×7 + 7×6 + 0×5 + 5×4 + 3×3 + 5×2 = 123 — and the last digit of that total, 3, must equal the seventh digit, 3. It does, so this number is well formed.