A new generation of Anti-Aircraft tanks were required shortly after the defeat of the Ori and the return of Ra. These tanks were used by SG-1 on their major missions to Goa'uld planets where they were used to take down Al'Kesh bombers before they could reach the main task force. The primary gun on the tank is a twin railgun. It fires at a rate of 60 rounds per minute-or one per second, as it uses a new shock resistor hydraulic system, along with cooling turbines. It is also able to protect itself from infantry strikes by firing heavy repeating ionized bullets from the four forward facing guns.