At 312 gross tons, Our Lady Patricia is the 77,690th 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 19 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 1,234 ferrys held here, it ranks 793rd by tonnage — larger than 10% of that group. Their median tonnage is 3,908 GT, and the largest tenth begin at 25,454 GT. The flag most often flown by this group is Japan (241 ships). The yard that appears most often against it is Mitsubishi Heavy Industries, with 34 hulls on record.
Our Lady Patricia was built in 1986, making it 40 years old. It is one of 866 hulls in this registry delivered that year, a cohort whose median tonnage is 4,769 GT; within it this ship is the 768th 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 47 vessels to Incat, with a median tonnage of 5,537 GT, delivered between 1986 and 2021. See the rest of that yard’s output.
At 29.6 m overall, Our Lady Patricia is 74.4 m shorter than the 104.0 m median for ferrys on record, with a beam of 11.8 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8507494 this registry holds 37 other vessels, whose median build year is 1986 and which range from 1985 to 1992. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1986.
Its IMO number, 8507494, carries its own check digit. The first six digits are weighted seven down to two and summed — 8×7 + 5×6 + 0×5 + 7×4 + 4×3 + 9×2 = 144 — and the last digit of that total, 4, must equal the seventh digit, 4. It does, so this number is well formed.
