The A-10 Thunderbolt II, also known by its pilots as the Warthog or Hog.
The GAU-8 Avenger is an seven barrel Gatling gun in 30 mm caliber mounted on the A-10 Thunderbolt II.
The C-RAM/Phalanx CIWS (Counter-Rocket Artillery Mortar) system and CIWS (Close In Weapon System) use a 20mm gatling cannon to destroy incoming targets.