How far successor classes progress before a treaty in 1927 would determine which ships could be built. Britain's likely successor to G3 and N3 is a fast battleship with at least 18-inch guns. The precise combination of technology remains open. Japanese planning already includes 18-inch and larger weapons and the No. 13 designs. The next American design and the Italian successor to Francesco Caracciolo remain unspecified.
Notable Point · 1:05:59-1:07:05
What follows G3, N3 and No. 13?
Successor classes become the uncertain part of the scenario once the cancelled designs have been completed.