The Kzinti Rampager class destroyer first appeared in 2110 and remained in service until 2189.
It was one of the Kzinti's earliest MAM reactor powered Warp Drive warships and proved superiour to both Klingon and Lyran fusion powered Warp Drive warships of that era.
Due to the initial distrust of Kzinti crews in having a large MAM reactor in the main hull, the engine nachelles each housed a small MAM reactor directly coupled to the Warp Coils, which introduced the problem of maintaining a harmonious Warp Field. The engines were very ineffiecient and much of the surplus power was vented as waste heat via the radiator cones on the tail end of the engine nachelles. The glow of these heat radiators was so bright, when the engine were on full power, that Terran UEN and later Federation starship crews nicknamed Kzinti starships using this Warp Drive system "Fireflies".
Despite the handicap the destroyer was capable of attaining Warp 5 and even greater velocities, depending on the skill of the engineering team monitoring and fettling the engines.
After 2189 the Rampager class destroyer, like so many obstellete Kzinti warships, found itself either used for target practice, training or converted into naval support vessels.