butler, avionics, aircraft, tsd, sfar, lear, boeing, beech, cessna, falcon, tiptank, camera, wastewater, indian gaming, igra, classic aviation, defense, environmental monitoring, buks, otcbb, architecture, electronics, mcdonnell, douglas, lockheed, fuel system, fqis, chain gun, special mission, airworthiness, fuel, rvsm, fins, honeywell, switching units

butler national corporation operates in the aerospace and services business segments. the aerospace segment focuses on the manufacturing of support systems for "classic" commercial and military aircraft including the butler national tsd for the boeing 747 honeywell fqis, switching equipment for boeing/douglas aircraft, weapon control systems for boeing helicopter and performance enhancement structural modifications for learjet, cessna, dassault and raytheon business aircraft. services include electronic monitoring of water pumping stations, temporary employee services, indian gaming services and administrative management services.