stability during loading of these huge crafts is helped by extending telescopic legs that come from under the boats hull there homes are the large tower at the rear left side and one at the front by the superstructure they extend down and touch the sea bead aiding it its stability during loading and during heavy weather,(was on Mighty ships on discovery recently) admittedly during transport its pretty dodgy floating that much mass out to sea.

but heres some more pics of some other stuff that these massive boats can lift along with the stats for the Blue Marlin in case anyone intrested

Original specifications:

Length Overall: 217 m (712 ft)

Length PP: 206.5 m (677 ft)

Breadth Moulded: 42 m (138 ft)

Depth Moulded: 13.3 m (44 ft)

Summer Draft: 10 m (33 ft)

Deadweight: 56,000 metric tons (USS Cole weighed much less than 8,000 metric tons)

Submerged Depth above Deck: 10 m (33 ft)

Free Deck Length: 178.2 m or 157.2 m (585 ft or 516 ft)

Free Deck Area: More than 7215 m² (77,672 ft²)

Main Engine Output: 12,640 kW (17,160 BHP)

Bow Thruster: 2,000 kW (2,712 BHP)

Cruise Speed: 14.5 knots

Cruise Range: 25,000 nm

Accommodation: 55 people

Building Yard: CSBC, Kaohsiung

Post-2004 specifications:

Length Overall: 224.5 m (736 ft)

Breadth: 63 m (207 ft)

Depth: 13.3 m (44 ft)

Max sailing draft: 10. m (33 ft)

Max draft submerged: 29.3 m (96 ft)

Water above deck submerged

- aft 16 m (53 ft)

- forward 12 m (39 ft)

Deadweight: 76,060 metric tons

Deck space: 63 x 178.2 m (207 x 585 ft)

Deck area: 11,227 m² (120,850 ft²)

Propulsor output: 4500 kW (6,035 hp) each

Conversion yard: Hyundai Mipo Dockyard, Ulsan, South Korea

But when it goes wrong.... this is the outcome!!

sorry post is long winded but i though it was all relevent to the subject