AT-AT

The **All Terrain Armored Transport** (**AT-AT**) was a four-legged combat walker of the All-terrain vehicle line used by the ground forces of the Galactic Republic, Galactic Empire, and the Dark Empire. With the *Imperial*-class Star Destroyer, stormtroopers and the TIE fighter, it was one of the most famous symbols of the Empire's military might.

## Characteristics

The AT-AT walker was a behemoth of a war machine, standing at a height of 22.5 meters. The quadrupedal walker closely resembled ancient beasts of war, or even a giant legendary beast from the dark side of the Force. Designed for the dual purpose of crushing and demoralizing enemy forces, and also serving as a transport for Imperial troops and light vehicles, the AT-AT was among the most astonishing vehicles in the Imperial Army's inventory. Hundreds of these walkers were produced during the Galactic Civil War, and its intimidating and powerful presence often earned it the distinction of being the first vehicle into a combat zone.

Serving as the "head" of the mechanical walker was a movable command section containing the command cockpit, with room for the commander, pilot and gunner. The command section housed all of the AT-AT's weapon systems, as well as holographic targeting systems allowing the gunners a 360-degree view of their position. The cockpit was also equipped with a holoprojector for purposes of external communication. Forward visualization was supplied by a glowing red command viewport. The head could rotate as much as ninety degrees right or left and thirty degrees up or down for an expansive field of fire. Positioned above and below the command section was the walker's sensor array and blaster cannon energizer, respectively.

The command head was attached to the trapezoidal armed body section by a flexible armored tunnel, allowing cockpit access from the rest of the machine. The AT-AT's troop section could typically carry five speeder bikes, up to forty troops normally comprising Imperial stormtroopers or Imperial land assault troopers in a double-tiered passenger section, and heavy weaponry, such as E-Web heavy repeating blasters. The AT-AT could also variably hold two All Terrain Scout Transports in lieu of soldiers in a rear vehicle bay, though they required partial disassembly to fit inside. Housing the troop section were two large side panels; each one held an escape hatch. The rear panel also housed the troop staging area. Positioned in the center of the body section was a rectangular boarding hatch with sliding ramps where the AT-AT's complement of troops loaded and disembarked. An AT-AT unloaded its troops by kneeling to three meters above ground level until the boarding ramp could extend outward. Individual stormtroopers could also be deployed rapidly by rappelling cable. An AT-AT walker deployed to the moon Yavin 8 carried a distress beacon which was launched aboard a missile.

Below the troop body section were two immense Kuat Drive Yards FW62 compact fusion drive systems that, in conjunction with the walker's four giant heavily-reinforced legs, propelled the AT-AT forward at a top speed of sixty kilometers per hour. However, this maximum rate was achievable only on flat, stable terrain. At the rear of, and connected to, the drive motors were the walker's three fuel slug tanks that powered the massive machine. The AT-AT's rear also included atmospheric exchangers and a filtration unit to regulate the interior living conditions. The walker's legs were supported by massive durasteel footpads with impulse terrain sensors, supplemented by toe flaps, that could crush obstacles in its path with little effort, effectively helping the AT-AT to live up to its name. The legs did, however, require constant maintenance and repair. As the titanic walker marched down the battlefield, its heavy, stomping feet would cause the ground to shake, demoralizing the enemy before they were even engaged.

The AT-AT's formidable offensive capabilities were supplied by dual, chin-mounted Taim & Bak MS-1 fire-linked heavy laser cannons (for slower, more cumbersome targets) and two fire-linked medium repeating blasters mounted on each side of the head (designed for lighter, agile targets). The two sets of weapons could be independently rotated in order to engage multiple targets at once. However, the AT-AT's head, which could move between a range of left, center and right firing arcs, could only rotate one fire arc per heavy laser volley. The walker's strong external 9095-T8511 grade durasteel armor was virtually impervious to all but the heaviest of artillery weapons.

The most vulnerable part of the walker was its flexible neck, which was susceptible to lighter blaster barrages. If punctured, it can lead to a reactor breach, although it was considered an unlikely scenario, it nonetheless was considered potentially catastrophic. The legs were also somewhat unstable and could be tripped due to a high center of gravity, leaving the walker defenseless. In addition, when tripped, AT-ATs do not regain footing easily, and they are also vulnerable to crumbling terrain. Damaging its knee joints can lead to loss of mobility, being less sound than the other parts of the leg due to their representing the flexible joining of two components, with the joints being vulnerable to artillery attacks. While first appearing to be a slow, lumbering vehicle, the AT-AT would often be on top of its enemies before they knew what had hit them. The AT-AT also lacked armor covering on its underbelly, leaving the spot vulnerable to mounted guns or portable missile launchers. To remedy this weakness, AT-STs were usually stationed around the walker's flanks to ensure nothing was given a clear shot at the AT-AT's weak underside. The walker could also be disabled with shots to the knee joint. In addition, they also lacked rear facing weaponry, and while sufficiently armored, their primary purpose nonetheless was to act as troop transports, and thus have comparatively lighter armaments compared to other mainstay walkers in the Imperial Army. In order to compensate for these glaring blind spots, the AT-ATs are often deployed in staggering formations, as well as accompanied by support vehicles.

AT-ATs were typically deployed for ground assault from orbit by large dropships. Walkers stationed within larger warships, such as the *Executor*-class Star Dreadnought, were delivered to planetary surfaces within Incom Y-85 Titan dropships, capable of carrying four AT-ATs. Smaller starships, such as the *Imperial*-class Star Destroyer, deployed single walkers via the *Theta*-class AT-AT barge. Other designs, including the Telgorn Corporation Warlord Dropship, were capable of delivering an armor platoon of four walkers.

### Models

#### Early model

This model was used against the early rebellion. This variant featured two heavy laser cannon turrets, four anti-personnel blasters, and a dorsal twin laser turret at the rear.

#### Later model

This model was used during the Galactic Civil War. This variant was shorter than the early model, and featured dual Piperii-Cerlurn R-90C medium blasters located on the sides or "temples," and a pair of Taim & Bak MS-1 fire-linked heavy laser cannons mounted on the "chin."

#### Elite AT-AT

This was a thicker and heavier armored version of the original **AT-AT**, this variant featured heavier laser cannons and the crew typically were amongst the best.

## History

Shortly after the Battle of Endor, AT-ATs were present for the Battle of Cawa City. The rogue agents of Inferno Squad Iden Versio and Del Meeko used an AT-AT in order to escape Vardos, during Operation: Cinder. In 5 ABY, at least one AT-AT walker was stationed at Camp Sardo on the planet Kashyyyk. During the Liberation of Kashyyyk, several Wookiee guerrilla fighters, including Kirratha, hijacked the AT-AT walker and threw out the crew. Later, AT-ATs were deployed against New Republic forces during the Battle of Jakku. Following the Galactic Civil War, AT-ATs and AT-STs were also used by the New Republic. AT-ATs were later used by the Dark Empire.