|Owner:||United Federation of Planets|
|Dimensions:||135 x 86 x 21 meters|
|Mass:||155,000 metric tons|
|Armament:||4 x Phaser Cannons, 4 x Phaser Banks, 2 fore torpedo launchers, 2 aft torpedo launcher (Type I Micro Quantum)|
The Callisto-class is a small escort corvette specifically designed as an auxiliary class for larger capital ships. The ship design has retractable nacelles allowing it to reduce in size and fit into a docking port on a capital ship.
Multiple ships of the class have been built over the years, however nearly every one has met an untimely end. Determined to be a weakness in the design, as it does not stand up to attack very well, and has limited armaments to defend itself, a more advanced, and battle ready variant was designed, the Ursa Major-class.