Semi-Submersible Crane Vessel
Principal dimensions
? Length of vessel 175.00 m
? Breadth of vessel 87.00 m
? Depth to main deck 45.00 m
? Length of each lower hull 163.00 m
? Operation draught 27.50 m
? Transit draught, approx. 10.50 m
Main characteristics of the J-lay system:
Pipe laying
? Maximum water depth 2,000-3,000 m
? Significant wave height 4 m (maximum)
? Maximum pipe laying load 5,250 Kn
(three tensioners, 1,750 kN each)
? Maximum pipe holding loads 20,000 kN
? Tower angle 90 C 100 degrees
Pipe data
? Pipe diameters 4 to 32 in
? Maximum diameter special piece 1,200 mm
? Nominal maximum pipe length (4 x 12.2 m) 48.8 m
? Maximum pipe section weights 50 t
Vessel upgrade
The vessel engineering involved the design of the internal
stiffening for the hinges to receive the J-lay equipment, the
upgrade of the DP capacity by means of additional thrusters and
the power upgrade with four new diesel generator sets.| Power | Original | Upgrade | Total |
| Main | 8 x 5,600 kW | 4 x 5,600 kW | 12 x 5,600 kW |
| Auxiliary | 2 x 3,000 kW | -- | 2 x 3,000 kW |
| Total | 50,800 kW | 22,400 kW | |
| | | | |
| Thrusters | | | |
| Azimuthing | 4 x 4,500 kW | -- | 4 x 4,500 kW |
Retractable
azimuthing | 4 x 3,000 kW | | 4 x 3,000 kW |
Retractable
azimuthing | | 2 x 5,500 kW | 2 x 5,500 kW |
| Bow | 2 x 2,500 kW | -- | 2 x 2,500 kW |
| Total | 35,000 kW | 11,000 kW | 41,000 kW |
