At 14,058 gross tons, Yermak is the 31,663rd 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 2.3 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 612 research / surveys held here, it ranks 25th by tonnage — larger than 95% 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.
Russia is the country of registry for 2,810 vessels in this directory, of which Yermak is the 87th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (830 ships), and the median vessel measures 2,293 GT. Browse every ship flagged Russia.
Narrowing to both dimensions at once, this registry holds 69 research / surveys flying the Russia flag, of which 16 are larger by tonnage.
Yermak was built in 1974, making it 52 years old. It is one of 2,111 hulls in this registry delivered that year, a cohort whose median tonnage is 1,681 GT; within it this ship is the 401st 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 135.0 m overall, Yermak is 64.0 m longer than the 71.0 m median for research / surveys on record.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 7330038 this registry holds 63 other vessels, whose median build year is 1973 and which range from 1967 to 1975. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1974.
Its IMO number, 7330038, carries its own check digit. The first six digits are weighted seven down to two and summed — 7×7 + 3×6 + 3×5 + 0×4 + 0×3 + 3×2 = 88 — and the last digit of that total, 8, must equal the seventh digit, 8. It does, so this number is well formed.
