
	Butler National Corporation, together with its subsidiaries, provides aerospace products and professional services in the United States. Its Aerospace Products segment provides aircraft modifications, such as aircraft conversion from passenger to freighter configuration; addition of aerial photography capability; stability enhancing modifications for Learjet, Beechcraft, Cessna, and Dassault Falcon aircraft; and other special mission modifications, as well as offers avionics, aerodynamic, and stability enhancement products for business jet aircraft. It also manufactures, sells, and services airborne electronic switching units used in DC-9, DC-10, DC-9/80, MD-80, MD-90, and KC-10 aircraft; transient suppression devices for fuel tank protection on Boeing Classic 737 and 747 aircraft, and other Classic aircraft using a capacitance fuel quantity indicating system; and airborne electronics upgrades for classic weapon control systems used on military aircraft and vehicles, as well as provides consulting services with airlines and equipment manufacturers relating to fuel system safety requirements. In addition, this segment sells, installs, and repairs avionics equipment, including airplane radio equipment and flight control systems; and troubleshoots and repairs autopilot systems. The company&rsquo;s Professional Services segment provides architectural services, such as commercial and industrial building design; and management services to the Boot Hill Casino and The Stables casino. Further, the company acquires, refurbishes, and sells airplanes, principally Learjets. Butler National Corporation was founded in 1960 and is headquartered in Olathe, Kansas.
