The AT-PT is a walker that was constructed before the clone wars, but it had been lost together with the catana fleet. As the fleet was found several years later the at-pt madea comeback and became one of the many walkers of the imperium. At-pts are extremely stable because of their deep body which is very near to the ground. when it walks the whole length of the legs are used. At-PT stands for all terrain person transport. It is made for only one man but in emergency, a second man can be included.