The Eta-class supply barge was a type of supply barge used by the Galactic Empire during the Imperial occupation of Jedha to transport kyber crystals that powered the Death Star's superlaser. Larger than the Zeta-class cargo shuttle, the Eta-class could hold multiple pods aloft on a dorsal cargo bed.
The Telgorn Corporation presented both the Eta-class supply barge and the Zeta-class cargo shuttle as a complete system of logistics vessels. As a result of this, the Galactic Empire rewarded the corporation with a major Imperial Navy contract for logistics modernization, and was introduced during the final months of the Death Star's construction. The Eta-class is primarily used for strategic spacelift between logistics bases unlike the Zeta-class, which is utilized as tactical delivery to the front line. During the Death Star's construction, it also was used to transport secret cargo along Project Stardust's covert supply lines.
One of the key features of both the Eta-class and Zeta-class vessels is the commonality of containers between both ships, which allows cargo to be sealed and certified at its point of origin and only opened at its destination, despite the possibility of the cargo being transferred between multiple vessels en route to its receiver. Befitting its role in the Imperial logistics chain, the supply barge boasts highly reliable systems, good shields, and significant cargo capacity at expense of its speed and offensive capabilities.
The Eta-class mounts racks on both its dorsal and ventral sides, holding twenty and forty-five containers, respectively. Though Telgorn included mountings for turrets fore and aft of the container racks, the Imperial Navy chose not to mount weapons onboard the supply barge, relying on dedicated escorts to protect the shipment. This is due largely to research originating from the Prefsbelt Academy, though hotly debated among naval theorists, that states that crews of armed transports, such as the Gozanti-class cruiser, needlessly endanger their cargo in an attempt to up their kill counts.
- Rogue One: A Star Wars Story (First appearance)
- Star Wars: Rogue One: The Ultimate Visual Guide (First identified as Eta-class supply barge)
- Starships and Speeders