Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a $19,421,059 cost-plus-fixed-fee modification (P00005) to a previously awarded indefinite-delivery/indefinite-quantity contract (N0001918D0129). This modification exercises an option to provide continuing emerging capabilities and analysis systems engineering. These efforts include programmatic and logistics tasks that will analyze the F-35 air system’s ability to meet future operational requirements; investigating cost and weight reduction program options; conducting modeling and simulation activities; and analyzing changes to design life, operational readiness, reliability, and air system design and configuration assessments. Work will be performed in Fort Worth, Texas, and is expected to be completed in December 2022. No funds are being obligated at time of award; funds will be obligated on individual orders as they are issued. The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.