U.S. Navy Fact Sheet

MK 53 - Decoy Launching System (Nulka)

Description
Description
The MK 53 Decoy Launching System (DLS) (Nulka) is a rapid response Active Expendable Decoy (AED) System capable of providing highly effective defense for ships against modern Anti-Ship Missiles. Developed in cooperation with Australia, Nulka means ‘be quick’ in the Australian Aboriginal dialect. It is intended to counter a wide spectrum of present and future radar-guided Anti-Ship Missiles (ASMs). The system can either be integrated with the Combat System or used with the stand-alone Fire Control System. The MK 53 DLS is a modified MK 36 DLS, adding four Nulka Launchers, Processor Power Supplies and a Decoy Launch Processor. After launch, the Nulka decoy radiates a large, ship-like radar cross section while flying a trajectory that lures ASMs away from their intended targets. Australia developed the hovering rocket while the U.S. developed the electronic payload. The U.S. and Australia have developed their own fire control system. Recent upgrades to Nulka include improved payload to enhance electromagnetic compatibility and modifications to the fire control system to increase the number of certified ship classes. Nulka can be used for stand-alone ship protection, or as part of a multi-layer defense system. With the ever-changing complexity of Anti-Ship Missiles, Nulka can be continually upgraded in order to provide protection to the Fleet. Likely changes will include technology advancements as well as tactical and technical changes to counter the threat.

Features
Anti-Air Warfare (AAW)

Background
Nulka received Milestone III approval for full-rate production in January 1999. Installation began on U.S. and Australian warships in September 1999. As of mid-2012, the MK 53 DLS is installed on more than 125 U.S. ships along with Australian and Canadian navies, and will be in service well into the 21st century.