WRIGHT-PATTERSON AFB, Ohio, Dec. 16 -- The U.S. Air Force issued the following news: The Air Force Research Laboratory (AFRL) teamed up with Aerojet Rocketdyne in November to complete a successful series of record-breaking tests of an advanced air-breathing hypersonic engine in the Arnold Engineering Development Complex (AEDC) Aerodynamic and Propulsion Test Unit (APTU) at Arnold Air Force Base, Tennessee. "Aerojet Rocketdyne joins the record setting team for the highest thrust produced by an   more