Jumboization

DEV Aratere before (top) and after (bottom) jumboization - note the distance between the lifeboats and main funnels.

Jumboization is a technique in shipbuilding consisting of enlarging a ship by adding an entire section to it. By contrast with refitting or installation of equipment, jumboization is a long and complex endeavour which can require a specialized shipyard.

Enlarging a ship by jumboization allows an increase in its capacity and revenue potential without needing to purchase or build an entirely new ship. This technique has been used on cruise ships and tankers, as well as smaller vessels like sailing or fishing ships.^[1]