One of the less well-known members of Rothana Heavy Engineering's AT-series walker family, the AT-AA was first produced during the final years of the Clone Wars.
More information about the vehicle is available on the Wookieepedia article.
ALL TERRAIN ANTI AIRCRAFT[1][]
Vehicle Type/Model: Walker/AT-AA.
Manufacturer: Rothana Heavy Engineering.
Sensor Range: Medium.
Crew: One pilot, one gunner, one vehicle commander.
Encumbrance Capacity: 25.
Passenger Capacity: 2.
Price/Rarity: 135,000 credits (R)/7.
Customization Hard Points: 0.
Weapons:
- Turret-mounted twin light flak cannon (Fire Arc All; Damage 5; Critical 3; Range [Close]; Blast 4, Linked 1, Slow-Firing 1, Vicious 3) or Turret-mounted concussion missile tube (Fire Arc Up; Damage 6; Critical 3; Range [Short]; Blast 4, Breach 4, Guided 3, Limited Ammo 36, Slow-Firing 1).
- ↑ Starships and Speeders: The Essential Collection of Vehicles (Page 26)