Underwater Bow Thruster Repairs
Bow thruster operations are carried out using lightweight flexible mobdocks that close off the thruster tunnel on both sides. This allows divers to work in a dry environment around the unit. All operations can be carried out in port or while the vessel is stationary at sea and normal commercial activities can continue without disruption. An animation of the procedure used can be viewed here.
If a thruster is to be repaired in drydock, the unit is usually removed after the ship docks. In that case the vessel has to wait while the thruster is repaired before she can undock. Hydrex can however easily remove the unit on-site before the ship comes in. The thruster can then be repaired in advance and will be ready for reinstallation when the ship comes into drydock.