No gross tonnage is recorded for this vessel, so it cannot be ranked by size. Rank is only shown where the underlying measurement exists.
Vessel particulars
Identification and dimensions
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
- IMO number
- 6402999
- IMO check digit
- Valid
- MMSI
- Call sign
- Flag state
- Greece
- Port of registry
- —
- Vessel class
- —
- Status
- in service
Construction
- Type
- Unclassified
- Builder
- Uddevalla shipyard
- Yard number
- Launched
- —
- Year built
- 1964
- Designed to carry
- —
- Owner
- —
- Operator on record
- —
Measurements
- Gross tonnage
- —
- Net tonnage
- —
- Displacement
- —
- Length overall
- 78.5 m
- Beam
- —
- Draft
- —
- Service speed
- —
In context
How Polhem compares
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.
Greece is the country of registry for 1,164 vessels in this directory. The most common class under that flag is vessels this registry holds no type classification for (835 ships), and the median vessel measures 29,858 GT. Browse every ship flagged Greece.
Narrowing to both dimensions at once, this registry holds 835 vessels this registry holds no type classification for flying the Greece flag.
Polhem was built in 1964, making it 62 years old. It is one of 309 hulls in this registry delivered that year, a cohort whose median tonnage is 909 GT. 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 37 vessels to Uddevalla shipyard, with a median tonnage of 32,861 GT, delivered between 1954 and 1985. See the rest of that yard’s output.
At 78.5 m overall, Polhem is 36.5 m shorter than the 115.0 m median for vessels this registry holds no type classification for on record.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 6402999 this registry holds 14 other vessels, whose median build year is 1964 and which range from 1910 to 1964. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 1964.
Its IMO number, 6402999, carries its own check digit. The first six digits are weighted seven down to two and summed — 6×7 + 4×6 + 0×5 + 2×4 + 9×3 + 9×2 = 119 — and the last digit of that total, 9, must equal the seventh digit, 9. It does, so this number is well formed.
Nearest by IMO number
Same yard, same years
Built alongside at Uddevalla shipyard
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.
Provenance
Where this page comes from
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryNo English Wikipedia article is linked to this vessel, so no summary is shown.
PhotographNo freely licensed photograph of this vessel is held, so none is shown.