
(These designs were made possible by improved propulsion system efficiency and by de-prioritizing armor protection.) The slow battleship branch models how USN battleship designs might have progressed without the requirement to operate in fleet with carriers. The fast battleship branch - North Carolina, South Dakota, Iowa, and Montana-classes - models the change in these requirements so that battleships could operate in fleet with speedy carriers. These were the USN "Standards", represented in-game up through Colorado.

Prior to the rise of aircraft carriers in the mid-1930's, the US Navy accepted the trade-off of speed for cruising range, inter-operability, firepower, and, to a lesser extent, protection in a common set of requirements for battleship design.

Kansas is the Tier VIII ship in the slow branch.

After Tier VII Colorado, the USN battleship tree splits into a "fast" branch and a "slow" branch.
