FMM multipurpose frigate

The X650 Aventurier as it was commissioned in 1996
Class overview
Builders:	Arsenal de Morienval-Nampont Arsenal de Villaroche Fincantieri Cantieri Navali Riuniti
Operators:	Sieuxerr Sylva
Preceded by:	T 47-class (Sieuxerr) Vercingétorix-class (Sieuxerr) Charlemagne-class (Sieuxerr) Tourville-class (Sieuxerr) Durand de la Penne-class (Sylva) Audace-class (Sylva) Maestrale-class (Sylva) Lupo-class (Sylva) Other ships used by other nations
Built:	1991–present
In commission:	1996–present
Planned:	12 (Sieuxerr) 8 (Sylva) 20+ (Total)
On order:	20+
General characteristics
Type:	Frigate
Displacement:	5,200 tonnes
Length:	133.5 m (438 ft) LOA 124.2 m (407 ft) LPP
Beam:	17.5 m (57 ft)
Draft:	4.8 m (16 ft)
Propulsion:	30,000 kW
Speed:	28 knots
Range:	5,000 nm @ 19 knots
Complement:	210
Sensors and processing systems:	Optronics: 1 × Sagem Vampir MB infra-red search and track system Radars: 1 × DRBV-26D wide air search radar 1 × EMPAR search radar 2 × RTN-25X fire control radars 2 × Navigation and helicopter radars Sonars: 1 × DUBV-54C hull sonar 1 × DSBV-62C towed sonar Communications: Satellite links: Inmarsat, SYRACUSE
Armament:	Guns: 1 × Canon de 76 mm Modèle 1964 (80 rounds) 2 × 25mm Testudo CIWS 2 × Model F2 20mm autocannons 4 × AA-82 12.7mm machine guns Missiles: 4 × 8 cell SYLVER A-50 VLS 32-128 mix of: COFFIN SR (Quad Packed) COFFIN MR (Quad Packed) COFFIN ER 2 × 8 cell SYLVER A-43 VLS 64 mix of: COFFIN SR (Quad Packed) COFFIN MR (Quad Packed) 2 × 4 MM.40 Block III Exocet OR MM.90 Block II launchers 2 × 6 cell Sadral launchers*(30 missiles) 2 × 2-tube 533mm torpedo launcher for MU90 or L5 w/ 10 torpedoes
Aircraft carried:	2 × NH90

The FMM ("Frigate Multi-Mission"; Merovingian: Frégate multi-mission; Sylvan: Fregata multi-missione) is a class of multi-mission frigates designed in the late-1980s and built throughout the 1990s and into the 2000s. The ships were designed with industry support by the AVA Committee on Frigate Replacement known as AVAC-FR. The ships were designed to give AVA states a single platform multi-purpose frigate to replace "medium range" air-defense warships like the Durand de la Penne-class used by the Sylvan Navy and the ''Vercingétorix''-class used by the Sieuxerrian Navy and also primarily ASW warships like the Maestrale-class and ''Charlemagne''-class.

The FMM would spearhead a number of new sensors and weapon systems while also retaining legacy systems to help reduce costs and increase interoperability between allied nations. In the Sieuxerrian Navy it is known as the Aventurier-class