Wall Colmonoy's Aerobraze Engineered Technologies of Oklahoma City, Okla., announced that the U.S. Air Force (USAF) has awarded it a multi-year, multimillion dollar contract for the re-core of heat exchangers to support the F-15 global fleet. The highly maneuverable F-15, designed to fly combat missions, is considered the premier air-superiority fighter jet. Wall Colmonoy developed high-temperature furnace brazing that is used extensively in the heat-exchanger manufacturing process. The company's brazing expertise has resulted in significant cost savings for the USAF. Deliveries are scheduled to begin in the fall of 2011.