Would a compact cruiser concept work for Spain as a relatively minor naval power?
Short answerSpain's colonial commitments make a narrowly conceived minor-power fleet a poor fit. A compact cruiser of roughly 6,000-6,500 tons is technically plausible if twin six-inch turrets are available around 1914.
NotesSpain's widely dispersed colonial possessions required substantial naval support, and it did not regard itself as a minor power in this period. A fleet designed only around limited local commitments therefore fits its strategic position poorly. A smaller cruiser remains technically possible as a separate design question. With workable twin six-inch turrets around 1914, the estimated displacement could be about 6,000-6,500 tons.