Avcon Industries, Inc.

A typical business aircraft owner will approach Avcon for custom modifications that may include aerial photography capabilities, conversions to air ambulance, cargo & freighter modifications, and aircraft performance enhancements. In order to modify aircraft, a Supplemental Type Certificate (STC) is normally required from the Federal Aviation Administration (FAA). Avcon currently holds over 240 such certificates that allow these modifications to be done in conformity with all FAA safety requirements.

Avcon quotes modifications on an individual basis. This is required even though most of Avcon's approved modifications have standardized pricing, because customers often require additional features. Over the past 30 years, the company has built a substantial list of regular customers which include Bombardier Aerospace/Learjet, USA Jet Airlines, Hawker Pacific, Flight International, Ameristar Jet Charter, Grand Aire Express, Premier Jets, NASA, the United States Air Force, and numerous international clients.

In 1996, Avcon received an STC for Avcon Fins, which are installed as a retrofit on Lear Models 35 and 36. The Fins are mounted like the feathers of an arrow on the rear of the aircraft. When installed, the aircraft exhibits the same aerodynamic stability and improved operating efficiency offered by newer Learjet models, while maintaining the outstanding range, speed, and load carrying capabilities that made these planes among the most popular business jets ever manufactured.

With the Fins installed, Avcon also offers a Range Extension (R/X) Mod, which adds 750 pounds of fuel to the aircraft tip tanks. This increases the range of Lear 35 & 36 aircraft by 250-300 nautical miles. A weight increase package is offered with Avcon Fins or the R/X Mod.

Also receiving recent FAA certification was a new extended baggage door conversion that facilitates loading and unloading of bulky cargo or medical patients on Beech King Air aircraft. Several conversions have already been completed, and Avcon management feels that many of the 3,000 King Air airplanes flying today may eventually benefit from this conversion.

This is only a brief sketch of one of Butler National's fastest growing subsidiaries, one that will continue to bring state-of-the-art modifications to the business aircraft market.