To build an aircraft, some assembly is required, and CPI Aerostructures is ready. CPI Aero delivers contract production of structural aircraft subassemblies, chiefly for the US Air Force and other US military customers. Military products include skin panels, flight control surfaces, leading edges, wing tips, engine components, cowl doors, and nacelle and inlet assemblies. The lineup is used on military aircraft, such as the C-5A Galaxy and C-130 Hercules cargo jets, E-3 Sentry AWACs jet, and T-38 Talon jet trainer. As a subcontractor to OEMs, CPI Aero also makes aprons and engine mounts for commercial aircraft, such as business jets. Government prime and subcontracts represent a majority of CPI Aero's sales