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The All Terrain Armored Cargo Transport (AT-ACT) was a larger version of the standard All Terrain Armored Transport combat walker that featured a dedicated cargo bed for the transportation of heavy building materials or combat munitions.



A side view showing the AT-ACT large cargo door.

The All Terrain Armored Cargo Transport was deployed at major Galactic Empire construction projects, such as shipyards and sprawling research installations.[6] Although the AT-ACT was not built for combat it was still capable of posing a formidable threat to infantry as discovered by Rebel troopers during the Battle of Scarif. The walker's taller profile gave it a faster stride than an AT-AT, although at the expense of structural stability. To give the knee joints extra strength when carrying cumbersome loads, an electromagnetic tensor field kept the overstressed motive assembly in smooth alignment. The magnetically sealed cargo module housed within the AT-ACT's frame encompassed nearly 550 cubic meters of space and was capable of carrying raw material or combat munitions. Loads were carefully managed by stevedore droids who divided up partial holds of ultradense materials into manageable trips. Powerful engines and tensor field-supported legs kept the massive AT-ACTs moving forward, from mining sites to processing facilites, carrying cargo in situations where repulsorfields were unreliable or not suitable due to material incompatibilities. The AT-ACT's footpads distributed its weight. The articulated neck had an access tube leading to the cockpit. The cabin had a reinforced viewport, ventilation grid, and ladder rungs leading to an emergency exit hatch. The AT-ACT was armed with two Taim & Bak MS-2 heavy laser cannons.[1]

Despite the existence of AT-ACT drivers,[8] the AT-ACT's design did not boast a specialized driver corps, as it was not technically designated a battlefield assault vehicle. Imperial combat assault tank pilots, AT-AT pilots, and other Imperial combat drivers in the Imperial Military were all qualified to operate it.[1]



An AT-ACT takes part in the defense of Scarif from the Rebel Alliance's raid.

A number of AT-ACTs were stationed at the construction site of Fortress Vader.[9] When an army of Mustafarians attacked the newly built fortress, the walkers defended it until a trio of Force-sensitive Mustafarians used the Force to flood the place with lava. Darth Vader was the sole Imperial survivor, using a fallen AT-ACT to escape the flooded plains.[10]

At least four AT-ACTs were present on Scarif in a battle against a squad of Rebel soldiers. When the Rebel incursion threatened the security of the Imperial security complex, Director Orson Krennic ordered the beach secured, and the ground crews seized this initiative to move their AT-ACTs into action.[1] They proved resistant to the weapons of the Rebel troops, but took losses when faced with X-wings and U-wings. They, along with all the other Imperial and Rebel forces in the area, were destroyed when Wilhuff Tarkin ordered the Death Star to fire on Scarif.[4]


An AT-ACT walker on a desert planet fires its heavy blaster cannons.

After the Battle of Endor, the walkers were among the forces deployed to defend Kuat Drive Yards during the New Republic's siege against the shipyards.[7]

At least one walker was stationed on the Mid Rim planet of Kashyyyk in the Black Forest before its liberation by the New Republic. By two years after the Battle of Jakku, the walker had fallen and was covered in fern and flowers, with plant stalks and small trees sprouting from its blown-open metal belly.[11]

Behind the scenes[]

"Part of the cargo walker's origin stems from the adage of 'create things as you remember not as they were'; turns out, most people remember the AT-ATs as being far taller than the 'real' scale works out to be, so the R1 walker ended up being a new model."
―Pablo Hidalgo[12]
Baze Malbus shoots an AT-ACT

The AT-ACT made its first appearance in Rogue One.

The first footage of the AT-ACT was shown in the Rogue One: A Star Wars Story teaser trailer on April 7, 2016.[13] The walker was identified as AT-ACT in a preview of the canceled reference book Rogue One: A Star Wars Story: The Official Visual Story Guide on May 17, 2016.[14] The full name was first revealed in the third episode of The Star Wars Show on May 25, 2016.[15] Behind the scenes, the walker was simply known as the "cargo walker."[16] The walker became a different model from the AT-AT as a result of those working on the movie believing the regular walker to be taller than it really was, necessitating the AT-ACT become its own variant.[12]



Notes and references[]

  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 Star Wars: Rogue One: The Ultimate Visual Guide
  2. 2.0 2.1 Dawn of Rebellion
  3. Star Wars Encyclopedia of Starfighters and Other Vehicles
  4. 4.0 4.1 Rogue One: A Star Wars Story
  5. 5.0 5.1 5.2 5.3 5.4 Starships and Speeders
  6. 6.0 6.1 6.2 StarWars-DatabankII AT-ACT walker in the Databank (backup link)
  7. 7.0 7.1 SWInsider "Blade Squadron: Kuat" — Star Wars Insider 168"
  8. HasbroInverted Star Wars: Rogue One (Pack: Rapid Fire Imperial AT-ACT) (backup link)
  9. Darth Vader (2017) 23
  10. Darth Vader (2017) 24
  11. Last Shot
  12. 12.0 12.1 TwitterLogo Pablo Hidalgo (@pabl0hidalgo) on Twitter: "Part of the cargo walker's origin stems from the adage of 'create things as you remember not as they were'; turns out, most people remember the AT-ATs as being far taller than the 'real' scale works out to be, so the R1 walker ended up being a new model." (backup link)
  13. SWYTlogo ROGUE ONE: A STAR WARS STORY Official Teaser Trailer on the official Star Wars YouTube channel (backup link)
  14. EdelweissPlus-Logo Rogue One: A Star Wars Story: The Official Visual Story Guide on the official Edelweiss website (backup link)
  15. The star wars show logo The Star Wars Show: Chewbacca Mom, Rogue One Character Reveal, A Star Wars Birthday Party on the official Star Wars YouTube channel (backup link)  (Posted on StarWars.com)
  16. TwitterLogo Pablo Hidalgo (@pabl0hidalgo) on Twitter: "Production wise, it was just 'cargo walker'. That's usually the case with these things. They typically don't get an in-universe acronym (AT-ACT) until the franchise folks turn them into products. I've come up with my share over the years." (backup link)