Nisshin Maru No.3

Nisshin Maru No.3 was built in 1947, making it 79 years old. It is one of 69 hulls in this registry delivered that year, a cohort whose median tonnage is 2,304 GT. Across the whole of the 1940s the registry holds 1,039 vessels, median 4,053 GT. The median build year across the entire registry is 1995.

The registry attributes 65 vessels to Götaverken, with a median tonnage of 7,041 GT, delivered between 1910 and 1989. See the rest of that yard’s output.

At 195.1 m overall, Nisshin Maru No.3 is 80.1 m longer than the 115.0 m median for vessels this registry holds no type classification for on record.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 5253494 this registry holds 4 other vessels, whose median build year is 1934 and which range from 1930 to 1947. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1947.

Its IMO number, 5253494, carries its own check digit. The first six digits are weighted seven down to two and summed — 5×7 + 2×6 + 5×5 + 3×4 + 4×3 + 9×2 = 114 — and the last digit of that total, 4, must equal the seventh digit, 4. It does, so this number is well formed.