ALEXANDRIA, Va.--(BUSINESS WIRE)--VSE Corporation (NASDAQ: VSEC) announced today that it has closed on the previously announced acquisition of four business units from Killick Aerospace Group, consisting of Prime Turbines (including both U.S. and Germany-based operations), CT Aerospace, Kansas Aviation of Independence and Air Parts & Supply Co. The companies specialize in maintenance, repair and overhaul (MRO) services and parts supply for corporate and regional jet aircraft engines and eng