Amphion-class submarines and postwar successors

Was the Amphion class meant to replace the V and S classes over the long term?

Largely yes for the V, S, and some U-class roles, but not as a universal replacement for all wartime submarine types.

The answer places Amphions mainly in the line of V, S, and some U-class boats. Those types shared more of the role and scale that the postwar class could inherit. The larger T-class is treated as requiring a different successor path. Amphion should therefore be understood as part of several overlapping submarine lineages rather than a universal replacement for every wartime boat.