RDA Inc.,* Doylestown, Pennsylvania, is awarded a $35,677,930 cost-plus-fixed-fee order (N6833524F0025) against a previously issued basic ordering agreement (N6833520G3039). This order procures engineering and technical services for research and development (R&D) efforts supporting anti-submarine warfare and under-sea warfare advanced sensors and systems (both active and passive) to include under-sea advantage, strategic development, multistatic active coherent, and airborne acoustic intelligence. Additionally, this effort includes digitization, encryption and assurance of production and future sonobuoys, on-going fleet training, maintenance of products for deployed systems and system stimulators including hardware and software. This R&D effort specifically supports Small Business Innovation Research (SBIR) Phase III efforts under SBIR topic N98-035 entitled “Signal Processing and System Concepts to Exploit Passive Signals in Airborne Active ASW Missions,” SBIR topic N04-247 entitled “Littoral Environment Parameter Estimation from Bistatic and Multistatic Fleet Air Antisubmarine Warfare Acoustic Reverberation Data,” and SBIR topic N06-011 entitled “Multi-Sensor Data Fusion for Littoral Undersea Warfare.” Work will be performed in Doylestown, Pennsylvania, and is expected to be completed in August 2029. Fiscal 2024 research, development, test, and evaluation (Navy) funds in the amount of $500,000 will be obligated at the time of award, none of which will expire at the end of the current fiscal year. Naval Air Warfare Center Aircraft Division Lakehurst, New Jersey, is the contracting activity.