How would British control of the Panama Canal influence Royal Navy ship design and deployment?
Short answerShips would be designed to use both Suez and Panama, allowing two-way imperial movement while giving Britain leverage over a vital US route.
NotesThe counterfactual gives Britain control of a second interoceanic shortcut in addition to Suez. Royal Navy ships would need to fit both canals so that units could circulate in either direction around the imperial network. Canal geometry would become a repeated design constraint. British control would also affect relations with the United States by placing the route between its Atlantic and Pacific coasts in foreign hands.