The Zero-class frigate was a frigate used by the GFSS, N'Akkiarlian Star Empire, Human Empire Party and the Tatooinian Irregular Fleet. It was a militarized version of the Zero-class transport ship which was used by civilian companies and spacers and Merchant Navies all over the galaxy. The Zero-class Transport Ship was much loved by smugglers or transport companies for its reliability, they rarely broke down so Galactic Shipyards decided to make military version for the Navy.