The closing question turns F3 into a counterfactual design exercise. It asks what should change in a 35,000-ton ship armed with 15-inch/50 guns and how that choice might reshape the wider British battle fleet. It also asks whether rival naval powers would accept or fear the design. The final classification problem, fast battleship or battlecruiser, brings the episode back to mission and design intent.
Notable Point · 58:42-59:35
The closing F3 counterfactual
A closing design exercise asks how a 15-inch/50 F3 might change Britain's battle fleet, rival naval programs, and the line between battlecruiser and fast battleship.