Delivery Order 80LARC21DA001-80LARC21FA001

NASA's Langley Research Center issued a delivery order to Harris Miller Miller & Hanson Inc., a woman-owned small business, on July 9, 2021, with a ceiling value of $28.015 million for community response testing with the X-59 Quiet Supersonic Technology aircraft, completion targeted for May 7, 2029.

The order is issued under a $29 million single-award IDC with NASA's Langley Research Center (awarded May 2021, extending through May 2029) focused on community response testing to support development of international standards for permissible supersonic aircraft noise levels. Place of performance is Burlington, MA. The order carries Cost Plus Fixed Fee pricing.

Service Contract Inventory data shows declining labor intensity over time: FY2021 invoiced $561 thousand against 1.3 FTEs and 2,740 contractor hours; FY2022 peaked at $1.6 million with 9.6 FTEs and 20,072 hours; FY2023 invoiced $949 thousand against 6.0 FTEs and 12,480 hours; FY2025 invoiced $3.1 million against 1.9 FTEs. Derived government-paid hourly rates declined from $204.80/hr (FY2021) to $76.04/hr (FY2023). In FY2025, the awardee self-performed all work with no subcontractors reported.