Lockheed Martin Aeronautics Company, Fort Worth, Texas, has been awarded an $11,703,452 cost-plus-fixed-fee contract, excluding unexercised options, for the Air Combat Evolution Technical Area 4 Phases 2 and 3 program. This contract provides for developing full-scale aircraft experimentation platforms capable of implementing the ACE algorithms and technologies, including human-machine interfaces, generated by the ACE Technical Area 1 and Technical Area 2 performers. Work will be performed in Fort Worth, Texas (75%) and Tucson, Arizona (25%), with an expected completion date of December 2023. Fiscal year 2022 research, development, test, and engineering funds in the amount of $7,500,000 are being obligated at time of award. This contract was a competitive acquisition under broad agency announcement HR001122S0015, and four proposals were received. The Defense Advanced Research Projects Agency, Arlington, Virginia, is the contracting activity (HR001122C0141).