Raytheon Missiles and Defense, Tucson, Arizona, has been awarded an $81,000,000 modification (P00072) to cost-plus-fixed-fee contract HR0011-17-C-0025, excluding unexercised options, for more opportunities with the Hypersonic Airbreathing Weapon Concept Program. The modification brings the total cumulative face value of the contract to $352,950,076 from $271,950,076. Work will be performed in Tucson, Arizona (99%); and Point Mugu, California (1%), with an estimated completion date of January 2026. Fiscal 2022 research and development funds in the amount of $114,734; and fiscal 2023 research and development funds in the amount of $57,068,058 are being obligated at the time of award. The Defense Advanced Research Projects Agency, Arlington, Virginia, is the contracting activity.