#shipboard_system__shipboardsystem  a system designed to work as a coherent entity on board a naval ship
  supertype:  #naval_equipment  #system.instrumentality
  subtype:  #anti-submarine_rocket  a shipboard system to fire rockets at submarines
  subtype:  #basic_point_defense_missile_system__basicpointdefensemissilesystem  a shipboard missile system
  subtype:  #naval_tactical_data_system  a shipboard system for collecting and displaying tactical data
  subtype:  #ship-towed_long-range_acoustic_detection_system  a shipboard system consisting of an acoustic detection system that is towed behind the ship
  subtype:  #surface-to-air_missile_system  the shipboard system that fires missiles at aircraft
  subtype:  #target_acquisition_system  a shipboard system for the detection and identification and location of a target with enough detail to permit effective weapon employment

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