Brin continued his experimentation with the class, adopting different hull forms, propulsion systems, and light gun batteries to determine the most effective configuration for the new warship type. He was joined in this task by Engineering Director Giacinto Pullino, who prepared the design for . Despite their variations, all were broadly similar to , upon which their designs were based. The follow-on class adopted the two-shaft engine arrangement that had been used in , along with her gun armament suite, which included a single gun; she was the only member of the class to carry a medium-caliber gun.
