Heroux-Devtek Inc. ( Heroux-Devtek) specializes in the design, development, manufacture, repair and overhaul of landing gear systems and components used principally in the Aerospace market. The Company has also built a design engineering team. Heroux-Devtek sells mainly to original equipment manufacturers (OEM), such as UnitedTechnologies Airways System (UTAS), Messier-Dowty, Bombardier, Lockheed-Martin and Triumph, and into the aftermarket, where its main customer is the US Air Force (USAF).The Company is supplying both the commercial and military sectors of the Aerospace market with new landing gear systems and components as well as aftermarket products and services, including spare parts and repair and overhaul services. In the commercial sector, the Company is active in the commercial and business jet, regional aircraft and helicopter markets. On the military side, the Company provides parts and services for all military aircraft in the United States.