Complex sentence: In addition, "Fairweather" is capable of towing an L3/Klein System 5000 Side Scan Sonar, and her launches can be equipped with additional hull-mounted L3/Klein System 5000 side scan sonars, for use in near-shore Arctic survey operations.
Split into simpler sentences: In addition, "Fairweather" is capable of towing an L3/Klein System 5000 Side Scan Sonar, and her launches can be equipped with additional hull-mounted L3/Klein System 5000 side scan sonars. These side scan sonars are for use in near-shore Arctic survey operations.