Blue Marlin is a semi-submersible heavy lift ship designed to transport very large semi-submersible drilling rigs above the transport ship’s deck or another ship or aircraft, it is equipped with 38 cabins to accommodate 60 people, a workout room, sauna and swimming facilities. one of the most extraordinary ships ever to sail the seas.The ship can carry 75,000 tonnes. Blue marlin was used when the US Navy needed to bring back destroyer USS Cole back home and when the Australian Navy wanted an aircraft carrier brought from Spain.
Length overall — 217 m (712 ft)
Breadth moulded — 42 m (138 ft)
Depth moulded — 13.3 m (44 ft)
Deadweight — 56,000 t (55,000 long tons; 62,000 short tons)
Submerged depth above deck — 10 m (33 ft)
Main engine output — 12,640 kW (16,950 hp)
Bow thruster — 2,000 kW (2,700 hp)
Cruise speed — 14.5 knots (26.9 km/h; 16.7 mph)
Cruise range — 25,000 nautical miles (46,000 km; 29,000 mi)
Building yard — CSBC, Kaohsiung
Engineering notes
How to move such big cargo on to the deck ? It would require a big crane isn’t it ?
No crane in the world is big enough to lift these sorts of cargoes so an excellent engineering trick is used to load ,the deck is submersible and can disappear under 13 metres of water when her ballast tanks are pumped full of water.Boats, oil rigs and ships can then be floated on and placed on her deck and then the deck is raised again by emptying its ballast tank.
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