General Dynamics Applied Physical Sciences Corp., Groton, Connecticut, was awarded a $9,675,903 modification (P00009) to cost-plus-fixed-fee contract HR001123C0054 for the Advanced Propulsor, Experimental model. The modification brings the total cumulative value of the contract from $28,562,226 to $38,238,129. Work will be performed in Cheswick, Pennsylvania (39%); Groton, Connecticut (25%); Niskayuna, New York (25%); Concord, Massachusetts (6%); Imperial, Pennsylvania (4%); and Arlington, Virginia (1%), with an expected completion date of March 2026. Fiscal 2024 research, development, test and engineering funds in the amount of $4,296,870 were obligated at time of award. This contract stems from a competitive acquisition for which three proposals were received in response to Broad Agency Announcement No. HR001122S0046. The Defense Advanced Research Projects Agency, Arlington, Virginia, is the contracting activity (HR001123C0054).