The closing follow-up considers a ship with a comfortable speed advantage at about 30 knots. With enough design progress and small-tube boilers, that speed is judged achievable in the hypothetical development path. The price is a ship of roughly 48,000-50,000 tons. It is presented as a cumbersome route to a fast battleship, rather than a compact or settled design.
Notable Point · 2:37:39-2:38:13
The displacement cost of a 30-knot fast battleship
The final design estimate puts a possible 30-knot fast battleship at roughly 48,000-50,000 tons.