The Ghost-class was a class of frigate-sized armed stealth scout ships, built and used by the Mesan Alignment Navy. (SI2) These ships were equipped with the spider drive, allowing them to travel slowly, but almost undetectably, in normal space. Their hull was capable of mimicking effectively any portion of the electromagnetic spectrum. The ships had weak anti-missile defenses, and no offensive armament at all. Other features included very powerful sensor suites and small flag bridges. (HH12)