The DY-300 Class Starship was a larger version of the DY-100 Class Starship that had added Phase Cannons to defend itself.

Two DY-300 Class Starships had left the Planet Earth without telling Starfleet Command or Torchwood Planetary Command knowing about it.

The Political Faction of the Humans on the DY-300 Class Starships was unknown, but they are leaving Starfleet Space at Warp 2 without telling anyone where they are going beforehand.

The risks of other interstellar powers taking the Humans for Slaves or sources of information on the Planetary Defenses of the Planet Earth was too great to avoid them getting away so Torchwood sent Sarajevo Type Starships after them.

Unit Types: Sarajevo Type Starships

Propulsion Systems: Warp 3 Engines, Impulse Drive

Armament: Phase Cannons, M61 Vulcan Cannons