The U.S. Navy awarded ATK a $67-million contract for the production of AAR-47 Missile Warning System Weapon Replaceable Assemblies (WRAs), encompassing the production of new and retrofit components, optical sensors, control indicators, and computer processors. ATK's AAR-47 MWS is an electronic warfare system designed to protect helicopters and aircraft against surface-to-air missile threats. It also alerts aircrews to threats from laser-guided and laser-aided weapons. The systems are installed on more than 2600 fixed and rotary-wing aircraft including the C-5, C-17, C-130, P-3, AH-1W, UH-1N, V-22. Work under this contract will be performed at ATK's manufacturing facility in Clearwater, FL.