Timeship

A Timeship is a type of starship designed for short-term research missions or long-term galactic exploration missions in another time period. They are not typically suitable for combat operations; however, larger timeships have the capacity to defend themselves–while withdrawing–from light to moderate encounters with hostile forces.

Federation timeships are equipped with Incremental Phase Cloaking Devices, that allow them to become invisible to sensors and the naked-eye as well as passing through solid matter, so as to avoid altering the timeline during missions outside of their home time period.