Why cruisers remained economic-warfare weapons

A cruiser's duties defined it more clearly than gun calibre alone. Long-range patrol gave endurance first place, while scouting, shadowing, chasing, and keeping the sea in bad weather made speed and seakeeping essential. The same ship could defend friendly trade or attack an opponent's commerce, giving both stronger and weaker naval powers an economical offensive instrument. In Jeune École thought, the cruiser inherited much of the independent role once associated with the sailing frigate. This framework explains why machinery and range mattered so much to individual French classes.