Spain greenlights €3.2 billion modernization program for F100 frigates

November 28, 2025, by Fatima Bahtić

Spain has approved a major mid-life modernization program for its F100 Álvaro de Bazán-class frigates, which form an important part of the Spanish Navy’s surface fleet.

As disclosed, the Council of Ministers has authorised the signing of the execution order for the upgrade effort, valued at €3.2 billion and expected to run for ten years.

The F100 class marked a major technological milestone for European shipbuilding. The frigates, which are 147 meters long with a beam of 18.6 meters and a full-load displacement of approximately 6,000 tons, are the first in Europe to integrate the Aegis combat management system with the AN/SPY-1D radar, forming the core of their area-air defense capability.

Armament includes a 48-cell Mk 41 vertical launch system capable of deploying SM-2 and ESSM missiles, a 5-inch/54 Mk 45 Mod 2 naval gun, Harpoon anti-ship missiles, torpedo tubes for Mk 46 or Mk 54 lightweight torpedoes, and a close-in weapons suite featuring the Meroka CIWS.

The frigates also carry an SH-60B or MH-60R helicopter for extended anti-submarine and surface warfare missions.

Delivered between 2002 and 2012, the five F100 frigates are approaching the midpoint of their operational life.

The work will be carried out at Navantia’s Ría de Ferrol shipyard, generating an estimated annual impact of €215 million on Spain’s GDP and supporting around 3,500 jobs across direct, indirect, and induced employment. The initiative forms part of the Industrial and Technological Plan for Security and Defense approved by the government in April.

The modernization program aims to extend the service of ships until 2045, address system obsolescence, improve efficiency and operability, harmonize updated systems across the class, and ensure compliance with current environmental regulations.

“Navantia will collaborate closely with the Spanish Navy to modernize the F100 frigates, internationally recognized as one of the best multipurpose vessels in the world, in order to maintain their capabilities at the forefront of technology,” said Navantia president Ricardo Domínguez.

Designed for demanding multi-domain operations, the F100s combine robust air-defence, anti-submarine, and anti-surface warfare capabilities. They regularly serve as fleet flagships, providing area defence, escort missions, and supporting international deployments.