Battleship

Apophis' prototype ship was an experimental Goa'uld mothership design intended to be the latest mothership in Apophis's expanding armada before it was destroyed by SG-1. Developed on the surface of PX9-757, the vessel carried several advancements that surpassed the standard Goa'uld Ha'tak-class ship encountered previously by Stargate Command.

The power core of the ship was sealed entirely in trinium, linked to a liquid cooling system stemming all directions in the mountainside construction facility. This zone was protected by Goa'uld force shielding and Jaffa patrols. An attempt at sabotage by the Tok'ra during the ship's construction failed. However, when the Tok'ra Anise supplied SG-1 members Jack O'Neill, Samantha Carter and Daniel Jackson with Atanik armbands, the team disobeyed orders, traveled to PX9-757, and successfully destroyed ship by destroying the engine cooling systems with C-4.