The disagreement turns on what 'heavy cruiser' means. One definition requires a substantial advantage over contemporary light cruisers and treats Alaska and Des Moines as different approaches to that requirement. Another uses the treaty category commonly applied to 8-inch cruisers. Applying treaty limits to Alaska instead brings it into the capital-ship discussion. The participants disagree about the classification because they are using different criteria.
Notable Point · 8:45:19-8:47:31
Alaska and Des Moines under competing cruiser definitions
A functional definition of heavy cruiser conflicts with treaty terminology when Alaska and Des Moines are compared.