Fremm Frigate Ship 3D model

The FREMM (European multi-purpose frigate; French: Frégate européenne multi-mission; Italian: Fregata europea multi-missione) is a class of multi-purpose frigates designed by Fincantieri and Naval Group for the navies of Italy (10 frigates) and France (8 frigates). The lead ship of the class, Aquitaine, was commissioned in November 2012 by the French Navy. In France the class is known as the Aquitaine class, while in Italy they are known as the Bergamini class. Italy has ordered six general purpose variants and four anti-submarine variants. France has ordered six anti-submarine variants, and two air-defense variants.

The United States Navy selected a FREMM variant for their new Constellation-class of 20 frigates, to be built by Fincantieri, starting with a $795 million contract for the lead ship Three original variants of the FREMM were proposed; an anti-submarine variant (ASW) and a general-purpose variant (GP) and a land-attack variant (AVT) to replace the existing classes of frigates within the French and Italian navies. A total of 27 FREMM were to be constructed - 17 for France and 10 for Italy - with additional aims to seek exports, however budget cuts and changing requirements has seen this number drop significantly for France, while the order for Italy remained unchanged. The land-attack variant (AVT) was subsequently cancelled.

A third anti-air warfare variant of FREMM was proposed by DCNS in response to French requirements for a new air-defence frigate, the new variant became known as FREDA (FREgates de Défense Aériennes, Air defence frigate). This new French requirement was due to the third and fourth Horizon-class frigates being cancelled after the first two cost €1.35B each, but this decision left French Navy still in-need of replacements for its ageing Cassard-class air-defence frigates.[12]

As of 2009, the FREDA design features a more powerful version of the Herakles (radar) passive electronically scanned array radar and 32 cells of SYLVER A50 in place of the 16 cells of A43 and 16 cells of A70. The SYLVER A50 would allow it to fire the 120 kilometres (75 mi)-range Aster 30 missile. While at one point it was determined that the towed array sonar would not be fitted, this has subsequently been retained on the FREDA design.[13][14]

At Euronaval 2012 DCNS showed a new concept called FREMM-ER for the FREDA requirement, again based on the FREMM, but specifically mentioning the ballistic missile defence mission as well as anti-air. FREMM-ER has a modified superstructure replacing Héraklès with the new Thales Sea Fire 500 radar, whose four fixed plates resemble those of the US Navy's AN/SPY-1.[15] However unlike the Héraklès and the SPY-1 (both using passive electronically scanned array technology), the Sea Fire 500 has active electronically scanned array antennas.[