Sperry Marine, a business unit of Northrop Grumman, has been awarded a contract to upgrade the navigation radars on five Swedish Navy patrol boats to meet mission requirements.

The contract includes options for six additional ships, plus a spare system, spare parts, service and maintenance.

Under the contract, the company will equip each ship with two dual-band interswitched chart radar systems with navalised display features to provide enhanced situational awareness.

The 23m-long aluminium-hull patrol boats have been designed for anti-submarine warfare, maritime control, reconnaissance missions, mine piloting and maritime surveillance, as well as search and rescue operations.

The CA Clase Marinelektronik business unit will install, commission, test and provide technical support for the project.