Praetorian DASS (Defensive Aids Sub-System)
The Praetorian Defensive Aids Sub-System (DASS) currently installed on the Eurofighter Typhoon, provides protection against air-to-air and surface-to-air threats, by monitoring and proactively responding to the operational environment. It contains Electronic Support Measures, missile warning, on-board electronic countermeasures and towed radar decoys to detect, evaluate and counter threats at maximum range.