A tire undergoes Missionized Tire Wear Testing in the 168-inch internal drum dynamometer at the Landing Gear Test Facility, or LGTF, at Wright-Patterson Air Force Base, Ohio, with concrete tiles installed to simulate a specific runway surface. The concrete tiles are created by taking molds of a runway then casting the tiles. The dynamometer operates at speeds up to 350 mph, with loads of up to 150,000 pounds, plus or minus 20 degrees of yaw, plus or minus 10 degrees of camber and can provide variable levels of brake torque. (U.S. Air Force photo)