How did American, Spanish, French, and British naval infrastructure compare during the War of 1812 and Napoleonic Wars?
Short answerBritain had the strongest effective supply system, France more underused infrastructure, Spain less depth, and the United States very little relevant capacity.
NotesFrance may have possessed more infrastructure in absolute terms, but coordination and supply prevented it from realizing the same result as Britain. Britain converted a more coherent supply system into reliable fleet output. Spain sat below both in industrial depth despite somewhat better organization than France. The United States remained so limited that a two-year war produced essentially no major launch program, showing the difference between individual capable ships and a mature naval-industrial system.