Naval Air Systems Command and Defense Logistics Agency Aviation Strategic Acquisition awarded Raytheon Co. two contracts totaling $115.7 million for the AN/AQS-22 Airborne Low Frequency Sonar (ALFS), the primary undersea warfare sensor for the U.S. Navy's MH-60R multimission helicopter. ALFS provides critical undersea warfare mission support capabilities, including submarine detection, tracking, localization, classification, acoustic intercept, underwater communication, and environmental data collection. Under the first contract, valued at $59.7 million, Raytheon Integrated Defense Systems will manufacture, integrate, test, and deliver ALFS systems. The company will also provide data and weapons replaceable assemblies for systems under test as well as helicopter maintenance trainer assets. The second contract, for $56 million, provides for spares for fleet-deployed systems.