Sub-carrier

The Sub-carrier was a droid sub-carrier manufactured by the Trade Federation subsidiary known as Haor Chall Engineering, in their attempts to create an aquatic version of the Variable Geometry Self-Propelled battle droid Mark I. The Federation did not make exclusive use of those carriers, since most were bought and used by the Quarren Isolation League. During the Clone War, the League pledged it's support to the Confederacy of Independent Systems, thus most of it's droids and other automata were incorporated into the Separatist Droid Army. During the Battle of Mon Calamari, the League used several of these sub-carriers to deploy Manta droid subfighters and mini-subs into battle against the combined Republic and Mon Calamari forces.