«Tyr R»

At 309 gross tons, «Tyr R» is the 77,751st 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 360 dredgers held here, it ranks 339th by tonnage — larger than 2% of that group. Their median tonnage is 2,086 GT, and the largest tenth begin at 11,701 GT. The flag most often flown by this group is People's Republic of China (43 ships). The yard that appears most often against it is Royal IHC, with 21 hulls on record.

Denmark is the country of registry for 849 vessels in this directory, of which «Tyr R» is the 648th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (495 ships), and the median vessel measures 4,678 GT. Browse every ship flagged Denmark.

Narrowing to both dimensions at once, this registry holds 11 dredgers flying the Denmark flag, of which 10 are larger by tonnage.

«Tyr R» was built in 1966, making it 60 years old. It is one of 440 hulls in this registry delivered that year, a cohort whose median tonnage is 839 GT; within it this ship is the 208th 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.

At 34.3 m overall, «Tyr R» is 45.7 m shorter than the 80.0 m median for dredgers on record and a draft of 2.5 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 8642713 this registry holds 27 other vessels, whose median build year is 1970 and which range from 1928 to 2000. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1966.

Its IMO number, 8642713, carries its own check digit. The first six digits are weighted seven down to two and summed — = 143 — and the last digit of that total, 3, must equal the seventh digit, 3. It does, so this number is well formed.