PRINCIPAL CHARACTERISTICS

2(two) Lower Hulls & 8(eight) Columns

 Length Overall: 344.5' (105.0m)

 Breadth Moulded: 242.1' (73.8m)

 Derrick Height: 160' (48.8m)

 Elevation Tower Deck: 119.8' (36.5m)

 Draft Operating: 77.1' (23.5m)

 Displacement: 39,600 MT

 Drilling Depth: 25,000' (7,600m)

 Payload Operating: 5,500 MT

The AKER H-4.2 is a twin-hull Semi-Submersible vessel, with a transverse truss arrangement between eight stability columns supporting a superstructure.

Special features include:

• large storage capacity,
• harsh environment measures including an essentially flush underside of the lower deck by the introduction of an internally stiffened double bottom,
• preparation for installation of additional winterization measures,
• readily adaptable to dynamic positioning (optional installation of additional thrusters as well as increased power generation capacity available).