What would the 1910 Royal Navy do with complete engineering plans for Yamato?
Short answerIt would reverse-engineer and improve the ideas, possibly producing an 18-inch battleship by 1914 and transforming the naval race.
NotesBritish engineers would use Yamato's plans as a technology jump rather than reproduce the ship exactly. Parsons, Brown, and ordnance specialists would dissect its machinery, armor, guns, and radar concepts and adapt what 1910 industry could support. The scenario produces an 18-inch battleship launching by 1914 after this accelerated development. Such a leap could force Germany to reconsider its naval program. It might even alter Britain's continental alignments by removing the naval rivalry that helped sustain cooperation with France and Russia.