# Leg 4 and H2 Heater (TB3C1) Request for Prototype Proposal

Canonical: https://abierto.us/opportunities/fa9101259l4h2

- Solicitation number: FA9101259L4H2
- Notice type: Solicitation
- Status: Closed. Deadline was September 26, 2025 at 1:00 PM EDT
- Department: Department of the Air Force
- Agency: Department of the Air Force
- Contracting office: FA9101 Aedc PKP Procrmnt BR (FA9101)
- NAICS: 541330 Engineering Services
- Product or service code: 3695 Miscellaneous Special Industry Machinery
- Place of performance: Arnold AFB, Tennessee
- First posted: August 26, 2025
- Last posted: September 19, 2025
- SAM.gov: https://sam.gov/workspace/contract/opp/62185cb9689241579d07de235c16cede/view

## Description

19 Sep 25 - Replaced Atch 2 - Prototype Proposal Evaluation Methodology Amend 0001 with an unsecured version.

15 Sep 25 - Added AEDC Standards and Q&As

10 Sep 25 - Amendment 0001 is posted including minor corrections and clarifications to the RFPP and Atch 2 - Prototype Proposal Evaluation Methodology.

The purpose of this request for prototpe proposal is to utilize 10 U.S.C. 4022 to award up to two (2) Other Transaction Prototype (OTP) Projects for the Leg 4 and new H2 Heater. After OTP award, and if determined to be in the best interest of the Government, one (1) follow-on production agreement will be awarded to the vendor whose OTP is determined to be successful. A successful OTP will validate the vendor’s capability to design and install a new process air heater and connections at Arnold Air Force Base, TN.

**NOTE:** Performance Parameters and associated appendices are marked Distro Statement D; distribution is authorized to Department of Defense and U.S. DoD contractors only. To obtain this attachment, your company must have a current (less than three years old) NIST SP 800-171 assessment in the Supplier Performance Risk System (SPRS). Contact the Agreements Officer and/or Agreements Specialist to request an electronic copy of the documents sent via DoD SAFE.

## Publications

- August 26, 2025: Solicitation, due September 26, 2025 at 1:00 PM EDT. Notice 3f3e01a7d80f4b8db17a87aa4c0fb8ba. https://sam.gov/workspace/contract/opp/3f3e01a7d80f4b8db17a87aa4c0fb8ba/view
- September 10, 2025: Solicitation, due September 26, 2025 at 1:00 PM EDT. Notice f06ffa3a3941493cac6e6adbe479ed0f. https://sam.gov/workspace/contract/opp/f06ffa3a3941493cac6e6adbe479ed0f/view
- September 15, 2025: Solicitation, due September 26, 2025 at 1:00 PM EDT. Notice bd556c7b75e8458481c5b8b98d2cc2b0. https://sam.gov/workspace/contract/opp/bd556c7b75e8458481c5b8b98d2cc2b0/view
- September 19, 2025: Solicitation, due September 26, 2025 at 1:00 PM EDT. Notice 62185cb9689241579d07de235c16cede. https://sam.gov/workspace/contract/opp/62185cb9689241579d07de235c16cede/view

## Points of contact

- Haley Smith, haley.smith.10@us.af.mil
- Bailey Deason, bailey.deason@us.af.mil

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/fa9101259l4h2.