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The Decoy Launching System (DLS) Mk 53 (NULKA) is a rapid response Active Expendable Decoy (AED) System capable of providing highly effective defense for ships of cruiser size and below against modern radar homing anti-ship missiles. Nulka is being developed in cooperation with Australia (in the Australian Aboriginal dialect, "Nulka" means "be quick!"). It is intended to counter a wide spectrum of present and future radar-guided anti-ship missiles (ASMs) assessed to have passive decoy rejection and active angular deflection electronic countermeasures rejection capabilities. It is designed to over-come the inherent shortfalls of chaff, which are wind dependence, lack of placement flexibility, relatively slow reaction time, and susceptibility to Doppler discrimination.
The system can either be integrated with the Combat System or used with the stand-alone AED Fire Control System. The DLS MK 53 Mod 4 is a modified DLS MK 36 Mod 12 by the addition of two NULKA launching tubes to each of the four MK 137 Mod 2 launchers and a Decoy Launch Processor. www.fas.org...