Gibdock has reinforced its reputation for ro-ro and container ship repair work by drydocking two con-ro vessels operated by Canadian shipowner, Oceanex. The yard was selected by St John’s, Newfoundland-based Oceanex to carry out wide-ranging work on the 1300TEU Oceanex Connaigra built by Flensburger Schiffbau-Gesellschaft and delivered in 2013, and the 1977-built, 1125TEU capacity, Oceanex Sanderling.
Ocean Connaigra is 210m long, 29.6m wide and 26,000gt. It has a deadweight of 19,300tonnes and a deck area of 13,700m2. The upper deck can accommodate 940TEU in typical con-ro opeartions. The scope of work on the Oceanex Connaigra included: the removal of the CPP propeller blades, the hub and tailshaft; the installation of a new hub; and the fitting of new propeller control pipework. The existing blades had to be machined in Gibdock’s workshops before refitting to the new hub. The vessel's main engines and diesel generators are equipped with a dry scrubber exhaust gas cleaning system designed by Couple (Germany). Th system makes use of pelletised hydrated lime, which reacts with the sulphur causing it to stick to the lime resulting in close to zero sulphur emmissions. The yard was also tasked with carrying out modifications to the exhaust gas scrubber system by replacing two bypass valves, each of which was 645mm in diameter. This involved cropping and modifying the exhaust trunk and modifying the fuel oil module by making adjustments to the pipework.
Gibdock carried out a very different package of work on Oceanex Sanderling, which is now nearly 40 years old. This required the removal of the con-ro ship’s stern ramp, which is made up of three sections, the biggest of which weighs 93 tons. Gibdock also removed Sanderling’s tailshaft for survey, removed and refurbished the rudder blade, reinforced the weather deck and fitted new container sockets to allow loading of 53ft containers. The yard overhauled bow thrusters, repaired paintwork and carried out other works associated with a general five-year survey.
While the three-year old Oceanex Connaigra was a first time visitor to Gibdock, Oceanex Sanderling was previously docked, in 2011. Richard Beards, Managing Director of Gibdock, says: “The owner was quite clear that Oceanex Connaigra and Oceanex Sanderling were required back in service within a tight timeframe, with minimal disruption to Oceanex customers. We were delighted to be chosen for this project, and to complete two very different but equally challenging projects on time on two con-ro ships of different ages.”