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A public reference property of Baalvion
Open data · every figure carries its source

Largest in this registry
#72,378
of 84,014 with a recorded tonnage
Largest research / survey
#408
of 483 of this type with a recorded tonnage
Largest in its fleet
#44
of 50 in this fleet with a recorded tonnage
In brief
Teshio (PM 15) is an active deep sea icebreaker owned and operated by the Japan Coast Guard. Classified as a medium-patrol-vessel, the ship is capable of icebreaking and ice navigation in winter waters around Hokkaido and similar seas. The ships ice resistance capability has been studied and published ice model testing made available based on sea trials.
Vessel particulars
Every value is as recorded in the source. Blanks are values the source does not hold — none is estimated from a sister ship or a class average.
Identification
Construction
Measurements
In context
Every figure in this section is a count, a rank or a percentile over vessels actually held in this registry — not over the world fleet, which is larger. Nothing here is estimated.
At 563 gross tons, JCG Teshio is the 72,378th 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 11 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 612 research / surveys held here, it ranks 408th by tonnage — larger than 16% 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.
Japan is the country of registry for 2,663 vessels in this directory, of which JCG Teshio is the 1,589th 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 14 research / surveys flying the Japan flag, of which 9 are larger by tonnage.
JCG Teshio was built in 1995, making it 31 years old. It is one of 1,092 hulls in this registry delivered that year, a cohort whose median tonnage is 7,255 GT; within it this ship is the 956th largest. Across the whole of the 1990s the registry holds 12,006 vessels, median 4,956 GT. The median build year across the entire registry is 1995.
The registry attributes 181 vessels to NKK, with a median tonnage of 56,076 GT, delivered between 1958 and 2003. See the rest of that yard’s output.
At 54.9 m overall, JCG Teshio is 16.1 m shorter than the 71.0 m median for research / surveys on record and a draft of 3.3 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9112404 this registry holds 58 other vessels, whose median build year is 1996 and which range from 1994 to 1998. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1995.
Its IMO number, 9112404, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 1×6 + 1×5 + 2×4 + 4×3 + 0×2 = 94 — and the last digit of that total, 4, must equal the seventh digit, 4. It does, so this number is well formed.
Nearest by tonnage among research / surveys
| Ship | Built | Gross tonnage |
|---|---|---|
| Antea | 1995 | 571 |
| Tornado | 1987 | 566 |
| Wijker Rib | 1962 | 565 |
| JCG Teshio (this ship) | 1995 | 563 |
| Capella | 2004 | 552 |
| RV TÜBİTAK Marmara | — | 500 |
| USCGC Sturgeon Bay | 1988 |
Same yard, same years
No ship class is recorded for this vessel, so these are not asserted to be sister ships — they are contemporaries from the same builder, shown because that is what the data supports.
Stellar Queen
1994 · 162,393 GT · Marshall Islands
New Progress
1994 · 159,766 GT · Liberia
Stellar Ocean
1994 · 159,766 GT · Marshall Islands
Victory
1996 · 87,799 GT · Marshall Islands
Cape Venus
1996 · 87,431 GT · Singapore
Channel Alliance
1996 · 87,368 GT · Hong Kong
Tia
1995 · 79,653 GT · Greece
Nichiho Maru
1994 · 77,439 GT · South Korea
Same fleet
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from Teshio (PM 15) on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy isana, reused under Public domain.
| 500 |