At 846 gross tons, JCG Dewa is the 67,568th 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 7.1 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 611 naval / patrols held here, it ranks 159th by tonnage — larger than 40% of that group. Their median tonnage is 1,325 GT, and the largest tenth begin at 23,606 GT. The flag most often flown by this group is United States (136 ships). The yard that appears most often against it is Austal, with 33 hulls on record.
Japan is the country of registry for 2,663 vessels in this directory, of which JCG Dewa is the 1,256th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (1,534 ships), and the median vessel measures 764 GT. Browse every ship flagged Japan.
Narrowing to both dimensions at once, this registry holds 66 naval / patrols flying the Japan flag, of which 36 are larger by tonnage.
JCG Dewa was built in 2006, making it 20 years old. It is one of 2,118 hulls in this registry delivered that year, a cohort whose median tonnage is 8,539 GT; within it this ship is the 1,730th largest. Across the whole of the 2000s the registry holds 18,605 vessels, median 9,957 GT. The median build year across the entire registry is 1995.
The registry attributes 77 vessels to Universal Shipbuilding, with a median tonnage of 101,933 GT, delivered between 2003 and 2014. See the rest of that yard’s output.
At 79.0 m overall, JCG Dewa is 7.5 m shorter than the 86.5 m median for naval / patrols on record.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9359064 this registry holds 55 other vessels, whose median build year is 2007 and which range from 2003 to 2010. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2006.
Its IMO number, 9359064, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 3×6 + 5×5 + 9×4 + 0×3 + 6×2 = 154 — and the last digit of that total, 4, must equal the seventh digit, 4. It does, so this number is well formed.
