The Belgium firm Hydrex has carried out underwater repair related work on the rudders of a 193m long ro-ro ship while it was berthed at Jebel Ali in Dubai. The original manufacturer needed to work on both rudders simultaneously and they needed to be disconnected for this purpose. Hydrex divers made sure that the rudders would stay in position during the repair by first taking the weight off the rudders and then locking them in the neutral position. The team took the exact measurements needed during an underwater inspection and the required materials were fabricated by the Hydrex diver/technicians on-site.
The rudder manufacturer could then safely disconnect the rudders from the engine room and perform the required work on the steering gear. When the manufacturer had finished its repairs, the divers removed the material used to fix the rudders in position, concluding the operation.
The owner could sail the vessel away from Dubai with two fully working rudders. The Hydrex team performed the operation on-site and underwater, enabling the ship to stay out of drydock and keep on schedule.