at-at
A fictional walker mecha from the Star Wars science fiction and fantasy series. It first appeared in the Star Wars: The Empire Strikes Back film from 1980.
The Kuat Drive Yards All Terrain Armored Transport Walker, also known as the Imperial Walker or simply as the AT-AT Walker, was a powerful and devastating mecha of the Galactic Empire's arsenal.
Imperial Walkers were designed to break through enemy lines, obliterate hostile bases and as a troop transport (it could carry up to 40 troops depending on its internal configuration). It was one of the biggest, most heavily armored and armed land vehicles in all the Imperial Army, but was also known for its relatively slow speed.
The AT-AT was 20 mts long, 22.5 mts high and traveled at a maximum speed of 60 km/h. It was piloted by two especialized Imperial Pilots called AT-AT pilots.
In real life it was designed by Ralph McQuarrie and Joe Johnston in the late 70s and early 80s.