Butler National Corporation, a 50-year old public stock company, operates in the Aerospace and Professional Services business segments. The Aerospace Products segment includes the manufacture, sale and service of electronic equipment and modifications to aircraft structures and electrical systems to support special mission and commercial aviation operations. Additionally, the company operates two Federal Aviation Administration (FAA) Repair Stations. Butler National companies, Avcon Industries, Inc. and Butler Avionics, Inc. concentrate on enhancements to Learjet, Beechcraft King Air, Cessna Caravan, Gulfstream, and other turbine powered aircraft. Butler National-Tempe designs and manufactures robust electronic controls and cabling.