From Halopedia, the Halo wiki
The Brumal-class mast is a kind of civilian transport ship employed by humanity. The function of the Brumal-class is unclear, though they can be equipped with FTL drives for slipspace travel. Star Charter-class colony support ships may be attached to Brumal-class masts and jettisoned from slipspace to emerge at their destinations.
- Meridian 5 - used to deploy four Star Charter-class ships including Meridian 5-Alpha to the colony world of Meridian.
- Halo Encyclopedia (2022 edition), page 117