OVERVIEW: The MU‑90 Impact (Mod 0) is a Franco‑Italian advanced lightweight anti‑submarine torpedo introduced in 2003 under the former Murène/A‑290 programs. It is electrically powered with pump‑jet propulsion and utilizes active/passive acoustic homing, optimized for deep-water and littoral environments.

DETAILS: “MU‑90” is the NATO designation for the European development combining France’s Murène and Italy’s A‑290 projects. It is 2.85 m long, 323.7 mm in diameter, and weighs approximately 304 kg (surface ship version), carrying a 32.7 kg PBX shaped‑charge warhead effective against double-hulled submarines. Powered by electric pump‑jet propulsion with AgO–Al batteries, it offers variable speed from ~29 kn economical to over 50 kn dash, yielding a range over 12 km at high speed and above 23 km at low speed, and operates to depths beyond 1 000 m. Acoustic guidance includes active/passive homing with advanced signal processing to counter decoys and anechoic coatings, while a Hard‑Kill variant exists for counter-torpedo defense. It is compatible with surface ships, helicopters, and fixed-wing aircraft, and reached initial operational capability in 1999–2003.

TYPE: Lightweight ship/air‑launched active/passive acoustic homing torpedo

FUNCTION: Launched from surface ship Mk 32 tubes or via aircraft/helicopters, the MU‑90 enters water and transitions into a helical search pattern using active/passive sonar. Upon detecting a submarine, it shifts to homing mode and accelerates to intercept with shaped‑charge warhead detonation.

NOTE:
IOC: 1999–2003
Manufacturer: EuroTorp (France/Italy consortium)
Operators: France; Italy; Germany; Australia; Denmark; Poland; Greece (pending); Ukraine (pending)
Platforms: Surface combatants with 324 mm torpedo tubes; ASW aircraft and helicopters; MILAS ASW missile
Conflict used in: No confirmed combat deployment

SOURCE: Wikipedia “MU90 Impact” (English); WeaponsSystems.net “MU90 Impact”; cmano‑db “MU‑90 Impact (2003, Ex‑Murene, Ex‑A.290)”