The original K'Thonn starfighter, the Vikari is outmoded and little used in the modern fleet. Originally designed from the ground up to testbed advanced fighter technologies, the fighter was the poster child for mediocrity. Not performing overly well in any given criteria, the K'Thonn Hierarchy upgraded most of its military craft to carry the more advanced Kalarh Heavy Fighter as soon as that fighter became available.
Though some of the great number of Vikari's still in existence were kept in military service, a greater number were sold off to private companies to serve as escorts and ground defense to protect against raiders or potential inter-colony strife. By the time of the K'Thonn rebellion, the Vikari was not only outdated but also unprepared for the trials of combat.
Historically, all major K'Thonn military ships had migrated to using solely Kalarh Heavy Fighters by the year 2045. However, some ships still opted for the lighter Vikari, but these were few and far apart.