OSI Maritime Systems announced the contract for a complete Integrated Navigation and Tactical System bridge for the Portuguese Navy’s new NPO3S/OPV Batch 3. The six warships, to be built by West Sea – Viana Shipyard in Viana do Castelo, Portugal, will considerably enhance the Portuguese Navy’s capabilities in maritime patrol, surveillance, fisheries protection, search-and-rescue, disaster relief, environmental protection, and the prevention of illicit activities such as drug trafficking and illegal immigration.