Koch Aviation Department

Double Check Company, LLC is a full-service provider of petroleum, car wash, and fluid-handling equipment across Missouri, Kansas, Oklahoma, and neighboring states. With 50+ years in business and a team whose combined experience exceeds 1,000 years, we deliver expertise you can trust. As an authorized Gilbarco distributor, we supply the industry's leading dispensers and pumps, backed by 50+ certified technicians and installers. Safety and customer service are at the core of our culture. When our orange vehicles arrive at your site, you can count on the best in the industry to meet your needs.

In 1968, Electromech Technologies designed and developed the first DC motor for horizontal stabilizers and flaps for general navigation applications. The company specializes in the manufacture and overhaul of AC/DC motors, blowers and actuators for the aerospace and defense industries. Electromech Technologies has in-house engineering resources to design, develop, test, manufacture and support all electromechanical components available. Examples of its design and testing capabilities include: advanced engineering design capability for customized high performance rotating equipment and tools; extensive in-house environmental testing for altitude, temperature, stress and vibration, plus microprocessor control of performance and life testing; high-energy motors with rare Earth samarium cobalt and neodymium iron borbon permanent magnets; AutoCAD with mechanical desktop for solids modeling; finite element analysis through the use of COSMOS/M; and propriety motor design programs for AC and DC motors and blowers. Electromech Technologies is located in Wichita, Kan., and is a subsidiary of McKechnie Aerospace.

CTS offers internet-based solutions to meet all your training needs. Our extensive training library is built upon the foundation of recurrent aircraft systems training (fixed-wing and rotor-wing) and our customizable basic indoctrination package is designed to meet the ground training requirements of 14 CFR Part 135, 125, and 91K (initial or recurrent). Designed to save you money, CTS offers internet-based solutions to meet all your training needs. Our extensive training library is built upon the foundation of recurrent aircraft systems training (fixed-wing and rotor-wing) and our customizable basic indoctrination package is designed to meet the ground training requirements of 14 CFR Part 135, 125, and 91K (initial or recurrent)