 Sonar

The Atlas Elektronik CSU 90 sonar suite includes hull-mounted passive and active search-and-attack, flank array and active intercept sonar arrays, as well as an own noise monitoring system.South Africa did not exercise the option of purchasing a 'clip-on' towed array sonar based on advice from existing users that the system is clumsy and would prove impractical in South Africa's envisaged operational context.ESM/ELINT

The submarine is equipped with a Saab Grintek Avionics UME-100 ESM/Designated ELINT system.