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Heavy lift
Operated by Royal Boskalis
Photo: U.S. Navy photo by PH2 Leland Comer. · Public domain · file
Largest in this registry
#9,499
of 84,014 with a recorded tonnage
Largest heavy lift
#4
of 223 of this type with a recorded tonnage
Largest in its fleet
#1
of 5 in this fleet with a recorded tonnage
In brief
Blue Marlin and her sister ship Black Marlin compose the Marlin class of semisubmersible heavy-lift ships operated by Dockwise of the Netherlands. Designed to transport very large, semisubmersible drilling rigs above the transport ship's deck, she is equipped with 38 cabins to accommodate 60 people, a workout room, sauna and swimming facilities, and a secure citadel for protection against pirate attacks.
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 51,821 gross tons, MV Blue Marlin is the 9,499th 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 8.6 times the typical vessel on record here. The largest measures 499,167 GT.
Among the 255 heavy lifts held here, it ranks 4th by tonnage — larger than 99% of that group. Their median tonnage is 1,670 GT, and the largest tenth begin at 24,484 GT. The flag most often flown by this group is Russia (41 ships). The yard that appears most often against it is Pella Sietas, with 8 hulls on record.
Malta is the country of registry for 2,640 vessels in this directory, of which MV Blue Marlin is the 507th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (1,614 ships), and the median vessel measures 23,204 GT. Browse every ship flagged Malta.
Narrowing to both dimensions at once, this registry holds 4 heavy lifts flying the Malta flag, of which 1 is larger by tonnage.
MV Blue Marlin was built in 2000, making it 26 years old. It is one of 1,296 hulls in this registry delivered that year, a cohort whose median tonnage is 8,737 GT; within it this ship is the 198th 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 270 vessels to CSBC Corporation, Taiwan, with a median tonnage of 43,605 GT, delivered between 1979 and 2021. See the rest of that yard’s output.
At 224.8 m overall, MV Blue Marlin is 144.3 m longer than the 80.5 m median for heavy lifts on record, with a beam of 63.1 m and a draft of 13.3 m.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9186338 this registry holds 60 other vessels, whose median build year is 1999 and which range from 1997 to 2005. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2000.
Its IMO number, 9186338, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 1×6 + 8×5 + 6×4 + 3×3 + 3×2 = 148 — and the last digit of that total, 8, must equal the seventh digit, 8. It does, so this number is well formed.
Nearest by tonnage among heavy lifts
| Ship | Built | Gross tonnage |
|---|---|---|
| Pioneering Spirit | 2014 | 403,342 |
| Zhen Hua 30 | 1995 | 147,490 |
| Saipem 7000 | 1987 | 117,812 |
| MV Blue Marlin (this ship) | 2000 | 51,821 |
| GPO Amethyst | 2018 | 49,091 |
| Innovation Way | 2001 | 46,909 |
| Seaway Hawk |
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.
Star Eleonora
2001 · 85,957 GT · Marshall Islands
Star Monisha
2001 · 85,957 GT · Marshall Islands

OOCL Chicago
2000 · 66,677 GT
OOCL San Francisco
2000 · 66,677 GT

Category:IMO 9203631
2001 · 64,005 GT · Comoros
Rambo
2001 · 64,005 GT · Saint Kitts and Nevis
Manalagi Asti
2000 · 49,565 GT · Indonesia
Taipower Prosperity I
2000 · 49,565 GT · Taiwan
Same fleet
Provenance
Vessel recordWikidata, released under CC0, keyed on this ship’s IMO number.
Written summaryQuoted from MV Blue Marlin on English Wikipedia, reused under CC BY-SA 4.0.
PhotographBy U.S. Navy photo by PH2 Leland Comer., reused under Public domain.
| 1989 |
| 44,657 |