The A-10 Thunderbolt II, also known as The Warthog or "Hog", is a single seat, twin turbofan-egine, straight wing military aircraft used by the United States Air Force that was developed in the early 1970s. The first production A-10A was delivered to Davis-Monthan Air Force Base in Tucson, Arizona, in October 1975. The upgraded A-10C began operation in September 2007. The A-10 has excellent maneuverability at low air speeds and altitude, and is a highly accurate and survivable weapons-delivery platform. The airplane can loiter near battle areas for extended periods of time and operate in low ceiling and visibility conditions. The wide combat radius and short takeoff and landing capability permit operations in and out of locations near front lines.