A hypothetical ceiling of 25 capital ships each for Britain and the United States gives Japan 15 under a 5:3 ratio. The desired 10:7 relationship instead produces an allowance equivalent to 17.5 ships. Rounding that allowance to 18 is proposed as the likely practical settlement. Each 25-ship fleet would still retain a seven-ship numerical advantage over Japan.
Notable Point · 2:58:53-3:00:01
Japan's 10:7 demand changes the treaty fleet balance
At a 25-ship British and American ceiling, Japan receives 15 ships under 5:3 but about 18 under the desired 10:7 ratio.