A9-M is the configuration of ECA Group A9 man portable Autonomous Underwater Vehicle, AUV, dedicated to military applications. The vehicle has been designed to meet STANAG 1364 requirement: its acoustic and magnetic signatures are minimized in order not to trigger any underwater mines when doing the mine warfare survey. Its main function is Mine Like Objects detection and even classification depending on environmental conditions and seabed type in particular.



  • Easy to use, easy to deploy
  • High resolution side scan sonar
  • Accurate Inertial Navigation System
  • Modular architecture for easy maintenance
  • Low magnetic and acoustic signature (STANAG 1364 compliant)

Applications for Defence & Security Sector

  • Organic underwater mine Warfare: MCM Mission module for large multipurpose vessel & Mission module for coastal mine warfare
  • Conventional underwater mine warfare: Detection and classification

Operational Performances

  • Endurance: up to 20 hours (With 2 Energy sections)
  • Max speed: up to 5 knots
  • Nominal speed: 3 knots
  • Operational depths: 3-200 m

Side Scan Specifications

  • Frequency: 455 kHz / 900 kHz or 600 kHz dual simultaneous
  • Pulse Technology: Wideband FM Chirp (1, 2, 4, 8 msec)
  • Across Track Resolution: 2,4cm (455 kHz, 900 kHz)
  • Horizontal Beam width: 0,34° (455 kHz and 900 kHz)
  • Swath Range: 2*150m @ 455 kHz 2*75m @ 900 kHz


  • Body diameter: 9 inches (23 cm)
  • Length: 200 cm
  • Weight: 70 kg
  • Energy section: 2.1 kWh
  • Navigation: Inertial Navigation System (INS), Doppler Velocity Log (DVL), depth sensor and Global Positioning System (GPS)
  • Communication: Radio (UHF), WiFi, Ethernet, Acoustic, Iridium on request
  • Safety: Emergency pinger, Strobe light, Fault and leak detection, on request: Obstacle Avoidance System, Local Remote Control for surface recovery
  • STANAG 1364 compliant (submitted to French export regulations)
  • Payload: Side Scan Sonar, Video, SVP (CTD and environmental sensors on request)


  • Obstacle Avoidance System
  • Satellite Communication
  • Interferometric Side Scan Sonar
  • CTD
  • Additional Energy Section
  • Environmental sensors (Turbidity, fluorescence)
  • Local Remote Control for surface recovery
  • Handling and maintenance tools
  • USBL

News & Events

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