French unprotected cruisers and avisos inherited from the 1870s could manage only about 12 to 14 knots, making them ineffective scouts by the mid-1880s. The naval works council therefore requested a small, fast cruiser of roughly 2,000 long tons. Its dual requirement was to scout for the main battle fleet and lead torpedo-boat squadrons. Louis-Émile Bertin had advocated this type of vessel since 1875, and his earlier cruiser Milan supplied the direct design basis for the Forbin class. Together, the requirement and lineage show how the class grew from both an operational gap and an existing experimental design.
Notable Point · 2:30-3:43
Obsolete avisos led France from Milan to the Forbin class
Slow French avisos could no longer scout effectively, so the navy sought a roughly 2,000-ton cruiser able to support both battle-fleet reconnaissance and torpedo-flotilla command.