Self-Propelled Heavy Artillery (SPHA) were a kind of modular walker utilized by the Grand Army of the Republic during the Clone Wars of 22 to 19 BBY. The Self-Propelled Heavy Artillery - Turbolaser (SPHA-T) was the most common variant used by the Republic's forces. This variant boasted a turbolaser cannon capable of punching through the hull of unshielded warships such as Lucrehulk-class core ships and Munificent-class star frigates. Concentrated fire from multiple SPHA-Ts could bring one of them down quickly as witnessed during the First Battle of Geonosis. Many SPHA-Ts were also fitted with anti-personnel blaster cannons for defence against incoming enemy infantry or light vehicles. These gargantuan walkers were larger and far heavier than most light freighters and often had to be deployed directly by assault ships (such as those of the Acclamator-class) or small frigates whereas other walkers (such as the AT-TE) could be deployed directly by LAAT/c gunships. Many Venator-class star destroyers of the Open Circle Fleet, commanded by Obi-Wan Kenobi and Anakin Skywalker, installed the turbolaser of an SPHA-T in their ventral hangars (at Skywalker's suggestion) and made great use of them during the Battle of Coruscant. Though possessing great firepower and range, the SPHA-Ts were quite cumbersome and the lack of a rotating turret mounted main weapon reduced their overall tactical viability in many situations. After the fall of the Galactic Republic, they served in the Galactic Empire's Imperial Army for only a few years before being retired.
Powers and Stats
Tier: 8-C with anti-personnel blaster cannons. At least High 7-A with turbolaser
Name: Self-Propelled Heavy Artillery - Turbolaser (SPHA-T)
Origin: Star Wars
Classification: Self-propelled artillery
Users: Galactic Republic (Grand Army of the Republic, Republic Navy)
Length: 140.2 metres
Height: 20.6 metres
Material: Most likely starship grade durasteel
Needed Prerequisite for use: Trained crew of 12 to 15 (additional 10 to 12 gunners if equipped with anti-personnel blaster cannons)
Attack Potency: Building level+ with anti-personnel blaster cannons (5 Gigajoules per shot on the highest power setting). At least Large Mountain level with turbolaser (Capable of punching through the hull of an unshielded Munificent-class Star Frigate and even tougher capital ships)
Speed: Peak Human level travel speed (up to 35 km/hr)
Range: Up to 2 km with anti-personnel blaster cannons, dozens of kilometres with turbolaser
- Quite slow (top speed of only 35 km/hr).
- Lacks a rotating turret. Therefore, the whole walker has to turn in order to properly aim the main weapon and this can be a rather slow process. This reduces its tactical viability in many scenarios.
- Lacks proper defences against enemy aircraft such as turret mounted anti-air laser cannons or missile launchers. This, combined with its sheer size, leaves it relatively more vulnerable to enemy aircraft.
- Lacks anti-personnel blasters at stock configuration and has to thus rely on a complement allied infantry or smaller vehicles for defence against incoming enemy infantry and light vehicles.
- Does not possess deflector shields at stock configuration and has to thus rely on its armor plating alone for protection.
- Turbolaser: The main weapon of the SPHA-T is a powerful turbolaser cannon mounted in a fixed position on the vehicle. It has very impressive range compared to most standard artillery and firepower enough to penetrate the hulls of unshielded Lucrehulk-class core ships and Munificent-class star frigates.
- Anti-personnel blaster cannon: These walkers can be fitted with up to twelve anti-personnel blaster cannons for defence against incoming enemy infantry and light vehicles. They are not available at stock configuration and equipping the SPHA-T with them necessitates ten to twelve additional personnel to act as gunners.
Note: This profile covers only the SPHA-T variant of the SPHA.