 The entity initially focused itself on the aeromechnical sector.Aerosud's early years of operation were marked by a feud between itself and Atlas, which was only resolved over a decade later.The company's first major contract involved the re-engining of the Dassault Mirage F1 with the Soviet-sourced Klimov RD-33 engine most commonly used to power the Mikoyan MiG-29 fighter.