Lockheed Martin Corp., RMS Niagara, Niagara Falls, New York, is awarded a $12,961,925 cost-plus-fixed-fee contract for the Gravity Aided Navigation System Phase Two. This contract provides for the development of a gravity-aided navigation solution for the Trident Navigation Subsystem. The efforts described herein include the appropriate sensors and algorithms to achieve two new capabilities: gravity sensor passive navigation, and vertical deflection verification and refinement. Work will be performed in Niagara Falls, New York, and is expected to be completed in March 2027. The total cumulative value of this contract, including a 36-month base period with no option periods, is $12,961,925. Fiscal 2024 research, development, test and evaluation (Navy) funds in the amount of $2,000,000 are obligated at time of award and will not expire at the end of the current fiscal year. This contract was competitively procured under (N00014-23-S-B001) entitled “Long Range Broad Agency Announcement (BAA) for Navy and Marine Corps Science and Technology.” Since proposals are received throughout the year under the Long-Range BAA, the number of proposals received in response to the solicitation is unknown. The Office of Naval Research, Arlington, Virginia, is the contracting activity (N0001424C1102).