How treaty rules reshaped the heavy cruiser

Treaty terminology obscures the design lineage. Eight-inch heavy cruisers descended from ships such as the Hawkins class, which the Royal Navy described as large light cruisers, while the lighter cruiser line grew from scout cruisers. The Washington Naval Treaty did not cap cruiser numbers, so Lexington's high-mounted eight-inch guns brought weight and design penalties that separate cruisers could avoid, assuming Congress funded them. The First London Naval Treaty briefly changed that calculation by limiting cruiser numbers and increasing the value of concentrating eight-inch firepower in available hulls. Wichita could escort carriers, scout with embarked aircraft, support island operations, and surprise an opponent expecting Brooklyn-class armament.