F100 Frigate

Spain's pioneering Aegis air-defence frigate — a compact but powerful combatant that proved a European hull could host the SPY-1D radar and 48 Mk 41 cells, and became the design parent of Norway's Nansen-class and inspiration for Australia's Hobart-class.

Overview

The F100 Álvaro de Bazán-class frigate, also called the Bazán-class, is a guided-missile frigate in service with the Spanish Navy. It was the first European warship to be built around the United States’ Aegis Combat System, pairing a passive phased-array radar with a 48-cell vertical launch system in a hull roughly one-third the displacement of the US destroyers that carried the same sensor. Five ships were delivered between 2002 and 2012, and the class has provided task-group air defence for allied carrier missions while directly influencing the design of Norway’s F310 Nansen-class frigates and Australia’s Hobart-class destroyers.

Development

Spain never operated large Aegis destroyers, yet it needed a modern area air-defence capability to escort its own carrier group and operate within NATO. The solution was to shrink the Aegis system into a frigate-sized hull, an idea that had not been attempted before. Navantia (then Bazán) at Ferrol drew up the F100 design in the 1990s, and the five ships were constructed between 1999 and 2012. The lead ship, F101 Álvaro de Bazán, commissioned in September 2002 as the first European Aegis combatant, and the programme proved that the compact arrangement worked — Navantia delivered the final unit, F105 Cristóbal Colón, in 2012.

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