OG-9 homing spider droid/Legends

The Homing spider droid, sometimes referred to as the Spider Tank is a tank droid manufactured for anti-vehicular combat by the Commerce Guild before and after the Clone Wars. Like the other combat automata deployed by the Commerce Guild, the Homing spider droids were originally developed to enforce the Guild's laws and to ensure that its customers paid their debts. The homing spider droid was developed by Baktoid Armor Workshop prior to its dissolution by the Trade Federation not long after the Battle of Naboo. During Baktoid's final days, the company tried to sell many of its designs, and the Commerce Guild purchased several droid models including the spider tank. The homing spider droid first appeared during the Battle of Geonosis where they fought the Army of the Republic. They were later deployed during the [Clone Wars]] by the combined forces of the Confederacy of Independent Systems.

Like the Republic's SPHA-T walker, it was effective against both ground based and airborne targets and was designed to transport a large and devastating weapon throughout the battlefield. The homing droid's armoured round body contains a volatile reactor. If the core is breached, the reactor violently explodes. The homing spider could cover wide areas of the battlefield with its four all terrain legs. Because of its great height and extendable hydraulics, the tank can position its homing laser above enemy targets or move to higher ground to blast at air vehicles. The legs are however vulnerable to damage, and if just one hydraulic leg is disabed, the entire vehicle will crash to the ground.

The spider tank's chief weapon is a laser emplacement mounted beneath the droid's round body. This circular dish fires a precision homing laser that can be maintained until the drone's internal power supply is finished. This sustained firepower allows the homing spider to weaken shields, destroy armoured vehicles and bombard troop formations. An antipersonnel cannon on top of the tank's round body can be used for close-quarters combat, while a retractable ion cannon can be added to disable starships or other powerful vehicles. There are also weapon mounts that allow other arnaments to be fixed to the droid. Sensor equipment fitted into the homing spider enables it to target and keep track of moving enemy targets.

Homing spiderdroids are distinguished by a number code alone and do not have developed personalities of long-term memory modules. Instead they possess an internal logic processor and military protocols for long-ranged missions, but the droids are often programmed to receive orders directly from a central control computer.