Spain has greenlit a major mid-life modernization program for its fleet of F100 frigates, authorizing an investment of 3.2 billion euros ($3.71 billion) to overhaul the Álvaro de Bazán-class warships. The upgrade, to be performed by Navantia, will unfold over a 10-year period and is intended to extend the vessels’ service lives until 2045. The five ships were originally delivered between 2002 and 2012, forming the core of Spain’s high-end naval escort capability.
The modernization package targets system obsolescence, improves onboard efficiency, ensures interoperability across the fleet, and brings the frigates in line with environmental compliance requirements. Government projections estimate that the program will contribute roughly 215 million euros to national GDP annually and support 3,500 jobs, offering substantial economic benefits alongside military enhancements.
The multipurpose F100s serve as key assets in air defense, anti-surface warfare, and anti-submarine operations, supporting NATO missions and Spanish naval deployments worldwide. Each vessel is 146.7 meters long, features an 18.6-meter beam, and displaces up to 6,594 tons at full load. Their combined gas-turbine and diesel propulsion system enables speeds of 28 knots and ranges of 4,500 nautical miles, with accommodations for 201 crew members.
Notably, the F100s were the first European ships equipped with the Aegis combat system, incorporating the AN/SPY-1D radar and the MK 41 VLS, enabling simultaneous tracking of multiple aerial and missile threats. Current weaponry includes Harpoon anti-ship missiles, a MK 45 Mod 2 naval gun, and a Meroka 2B CIWS. Under the modernization effort, the aging Harpoon launchers will be replaced with Naval Strike Missiles, providing the frigates with a next-generation precision anti-ship capability.
