 It is home to Western Michigan University College of Aviation, "Duncan Aviation" – the nation's largest family-owned aircraft refurbishing company, WACO Classic Aircraft Corporation, Federal Express regional truck distribution facility, and other aviation businesses.The Battle Creek Field of Flight Air Show and Balloon Festival is also held annually at Kellogg Airport.The 110th Attack Wing (110 ATKW), a unit of the Michigan Air National Guard, uses a portion of the airport as a military installation known as Battle Creek Air National Guard Base.