The group's principal activity is to design and produce complex aerospace structural subassemblies under United States government and commercial contracts. It provides engineering, technical and program management services to its customers. The group produces structural aircraft parts and sub-assemblies for the commercial and military sectors of the aircraft industry. Its products include aprons and engine mounts used to attach jet engine housings to aircraft. It also assembles structural replacement parts for military aircraft, including spoilers, flaps, ducts, skins and doors. The group has discontinued the operations of its wholly owned subsidiary, kolar machine inc, a precision machine parts manufacturer.