The U.S. Air Force is buying twenty Brazilian A-29 Super Tucano aircraft for the Afghanistan Air Force. The Super Tucano is a single engine turbo-prop trainer/attack aircraft that is used by over a dozen nations. This aircraft carries two internal 12.7mm (.50 caliber) machine-guns and carries 1.5 tons of bombs and rockets. It can stay in the air for 6.5 hours at a time. It is rugged, easy to maintain and cheap. The U.S. is paying $17.7 million for each Super Tucano, which includes training, spare parts and support equipment.