OVERVIEW: The Syllex is a naval launcher system developed by France in the late 1970s. It is designed to deploy Countermeasures for ship defense against guided missile threats.

DETAILS: The Syllex system consists of fixed-angle deck-mounted launch tubes capable of firing salvos. It was used aboard select French Navy vessels during the Cold War era. The system was integrated with onboard electronic support measures for automatic deployment. Syllex contributed to a layered countermeasures suite alongside towed decoys and internal threat detection equipment.

FONCTION:
Radar warning detection triggers deployment.
Chaff rockets are fired in salvos from deck-mounted launchers.
Dispensed Countermeasures to seduce incoming guided missiles.

SOURCE:
Naval Encyclopedia ; Forecast International PDF (ARC_ID 718) ; Wikipedia – FS Aconit (D646) ; seaforces.org – French Navy vessels.