At 10,065 gross tons, ARA Almirante Irízar is the 35,579th 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 1.7 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 612 research / surveys held here, it ranks 41st by tonnage — larger than 92% of that group. Their median tonnage is 2,180 GT, and the largest tenth begin at 9,452 GT. The flag most often flown by this group is United States (90 ships). The yard that appears most often against it is Wärtsilä, with 36 hulls on record.
Argentina is the country of registry for 296 vessels in this directory, of which ARA Almirante Irízar is the 24th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (222 ships), and the median vessel measures 628 GT. Browse every ship flagged Argentina.
Narrowing to both dimensions at once, this registry holds 3 research / surveys flying the Argentina flag, of which none is larger than ARA Almirante Irízar.
ARA Almirante Irízar was built in 1978, making it 48 years old. It is one of 1,698 hulls in this registry delivered that year, a cohort whose median tonnage is 3,556 GT; within it this ship is the 495th largest. Across the whole of the 1970s the registry holds 17,331 vessels, median 2,774 GT. The median build year across the entire registry is 1995.
The registry attributes 118 vessels to Wärtsilä, with a median tonnage of 14,058 GT, delivered between 1938 and 1998. See the rest of that yard’s output.
At 119.0 m overall, ARA Almirante Irízar is 48.0 m longer than the 71.0 m median for research / surveys on record, with a beam of 25.2 m and a draft of 9.5 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 7533628 this registry holds 38 other vessels, whose median build year is 1977 and which range from 1975 to 1980. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1978.
Its IMO number, 7533628, carries its own check digit. The first six digits are weighted seven down to two and summed — 7×7 + 5×6 + 3×5 + 3×4 + 6×3 + 2×2 = 128 — and the last digit of that total, 8, must equal the seventh digit, 8. It does, so this number is well formed.
