Frequently Asked Questions for WIDENING of Containerships

What is special about this process?
The way and the positions where the vessels are cut does not touch any parts of the vessels that have to endure high stress during heavy seas. Furthermore, the container intake nominal as well as “max weight carried” has been maximized with the least amount of extra steel used.

Is the converted vessel strong and durable?
The converted vessel is just as strong and durable as the original and the vessel will lie even more stable in the water due to bigger beam and therefore use less ballast water. Hence the carrying capacity is maximized and not wasted for ballast and stability reasons as with Panamax vessels. The converted vessel will receive a class certificate seagoing vessel unrestricted service.

Which vessels can be used? What size can be achieved?
In essence any vessel can be use. However, younger vessels (abt. 5 years of age) would be preferred. The size depends on the original design of the vessel whereas the molded depth, tiers of containers under deck (the more the better) and the number of bays behind the superstructure (the less the better) set limits to the size. Panamax vessels can be increased to 6,300 TEU.

How does the EEDI compare to newbuildings?
The EEDI will be well below the line requested for newbuildings in 2020.

Who can do it?
The method itself has been patented by NSB, whereas the actual widening work NSB is tendering with a selection of high quality shipyards. The widening process is completely covered by NSB’s project management.

What time is needed?
The conversion itself only take about 120 days and the detailed planning and prefabrication up to further 120 days based on a designed and approved project.