
HMS Hobart, artist's conception
In the good (or bad) old days, ships were built from the keel up, with the frames rising from the keel, and the plating or planking secured over the frames. These days ships are built in modules, large blocks of steel with piping, wiring and coatings already in place. The blocks are then welded together and a new ship emerges. It is all highly complicated but extremely efficient, at least until there is a mistake. In the construction of the HMAS Hobart, the shipyards building the modules discovered that their blocks don’t fit together.
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