The class was designed with three funnels, but Columbia emerged with four while Minneapolis had two. Some accounts interpret the differing silhouettes as an attempt to make the cruisers resemble passenger liners. Improvements in funnel design and exhaust handling are presented as a more plausible explanation, so the disguise claim remains an interpretation rather than an established purpose. The broader comparison places Columbia within a long lineage of speed-for-armour trade-offs that later shaped battlecruisers.
Notable Point · 32:50-34:55
Why Columbia's funnels probably were not a liner disguise
Different funnel arrangements on Columbia and Minneapolis lead to a design-history caution about liner disguise claims and a broader speed-for-armour lineage.