The Brazilian Navy's Niterói-class Mark 10 frigates Liberal (F43), Independência (F44), and União (F45) will have their SICONTA MK II (Sistema de Controle Tático e de Armas) combat management systems (CMSs) modernised to the SICONTA MK II Mod 1 configuration, the service told Jane's .
The CMS mid-life upgrade (MLU), which consists of modernising hardware and software, will start in 2020, the navy added. The three ships also will undergo maintenance. The MLU is scheduled to be completed by 6 December 2021.
A 12 December 2013 contract between the Navy Weapon Systems Directorate and local firm Consub Defesa e Tecnologia covered the MLU of CMSs in all the six Niterói-class ships and two land-based systems.
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