OVERVIEW: Mine & Obstacle Avoidance systems are shipborne sonar systems developed to help naval vessels safely navigate mine-threatened or cluttered underwater environments. They provide real-time detection of mines and submerged hazards using short- to medium-range active sonar.

GENERAL DESCRIPTION: Generic Mine & Obstacle Avoidance systems for ships are designed to detect underwater mines, obstacles, and hazardous seabed features to ensure safe navigation in littoral and contested waters. These systems typically use active sonar technologies with short to medium range capabilities, providing real-time underwater imaging to aid maneuvering and mine countermeasure operations. Employed widely on minehunters, mine countermeasure vessels, and larger surface combatants, they enhance ship survivability and operational safety in mine-threatened environments. Approximate IOC dates from the 1980s onward, evolving with improvements in sonar processing and display technologies.

ROLE SUMMARY:
Category: Underwater Mine & Obstacle Detection Systems
Primary Use: Detection and avoidance of underwater mines and obstacles
Function: Active sonar scanning with real-time imaging and alerting
Platform: Installed on minehunters, mine countermeasure vessels, amphibious ships, and larger surface combatants

SOURCE:
Naval Mine Warfare Technical Publications
Defense Industry Open Sources