USS Norfolk and the limits of an all-3-inch battery

Why would twelve rapid-firing 3-inch guns look inadequate on a cruiser intended only as a stopgap?

A 3-inch battery could provide effective air defence without the offensive threat expected of a cruiser. USS Norfolk's short service life is used to illustrate that problem.

USS Norfolk provides a comparison with the proposed all-3-inch cruiser: a new destroyer leader of nearly 6,000 tons carried eight 3-inch/70 guns. The stated service dates are 1953 to 1970, followed by striking in 1973, leaving fewer than twenty years in commission. A 3-inch battery could be effective for air defence while still offering too little offensive threat for a large ship. This interpretation explains why twelve rapid-firing 3-inch guns would not necessarily meet expectations for a cruiser, even as a stopgap. Smaller guns appear more substantial today partly because heavier naval gun armaments have become less common.