HDMS Danbjørn

At 3,010 gross tons, HDMS Danbjørn is the 51,483rd 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 2.0 times smaller than the typical vessel on record here. The largest measures 499,167 GT.

Among the 612 research / surveys held here, it ranks 194th by tonnage — larger than 60% 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.

Denmark is the country of registry for 849 vessels in this directory, of which HDMS Danbjørn is the 427th 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 8 research / surveys flying the Denmark flag, of which none is larger than HDMS Danbjørn.

HDMS Danbjørn was built in 1965, making it 61 years old. It is one of 378 hulls in this registry delivered that year, a cohort whose median tonnage is 695 GT; within it this ship is the 29th 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.

The registry attributes 190 vessels to Odense Steel Shipyard, with a median tonnage of 52,186 GT, delivered between 1924 and 2012. See the rest of that yard’s output.

At 77.0 m overall, HDMS Danbjørn is 6.0 m longer than the 71.0 m median for research / surveys on record, with a beam of 17.1 m and a draft of 8.0 m.

IMO numbers are issued in broadly chronological blocks. Within 500 either side of 6421919 this registry holds 11 other vessels, whose median build year is 1964 and which range from 1938 to 1965. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1965.

Its IMO number, 6421919, carries its own check digit. The first six digits are weighted seven down to two and summed — 6×7 + 4×6 + 2×5 + 1×4 + 9×3 + 1×2 = 109 — and the last digit of that total, 9, must equal the seventh digit, 9. It does, so this number is well formed.