He was teacher in the Floating Naval School (located in the old frigate Asturias) in Ferrol.

He was part of Rear Admiral Manuel De La Camara's squadron (in command of a destroyer flotilla made up of Audaz (flagship), Osado, and Proserpina) when it was sent to Philippines during the Spanish–American War; the squadron was detained in Port Said, after a dispute with Egypt over permission to coal, and never reached its destination.

He reached the rank of Capitán de Navío (captain) in 1903, when he was appointed Minister of the Navy during Antonio Maura's first government.

Known as Ferrandiz's Law, this authorized: He also ordered the modernization of the Cartagena and Ferrol shipyard and construction of a new dry dock for ships of up to 20,000 t (required by the planned Españas).

In 1909, King Alfonso XIII named him senator for life.