Carrier doctrine had to be learned at sea

The first carriers preceded mature carrier doctrine because navies needed real ships before they could discover how aviation worked in a fleet. British officers had initial ideas, and American and Japanese planners had concepts, but exercises exposed problems that design studies alone could not settle. Furious accumulated one refit over another, making her less efficient than a ship designed around the final requirement from the keel up. Correcting a conversion preserved capability while embedding compromises in layout, visibility, and internal volume. Doctrine, ship design, and fleet organization developed together through repeated operations rather than in a neat sequence from theory to construction.