Solicitation
Pioneering Aerospace Capabilities, Engineering and Research
Department of Defense · Department of the Air Force
AI summarySolicitation FA2391-23-S-2403 (PACER) is an Air Force Research Laboratory open call for aerospace research; white papers come first, and only selected firms get a request for proposal. A white paper is a short written pitch of your research idea. Separate Calls on set topics, such as Tactical Air-Launched Weapon Demonstrating Industrialization (TAWODI), have their own due dates, and some require facility clearances or controlled-data access. SAM.gov shows the response due date as May 10, 2031, 3:00 PM Eastern, while the BAA text says 1500 EDT on 10 May 2043. More in the summary
A newer version of this notice was posted Oct 27, 2026. It moves the due date from May 10, 2028 to May 10, 2031, which is the date shown on this page. See the latest version.
AI summary Beta
Summary of the version posted Oct 22, 2026. The notice was amended Oct 27, 2026. Check what else changed on SAM.gov. This summary may miss requirements: 51 of 63 attachments weren't read (Amendment 02-MASTR Call-13 MAR 2025.pdf, Amendment 03-MASTR Call-19 Mar 2025.pdf and 49 more). Check the attachments on SAM.gov.
Solicitation FA2391-23-S-2403 (PACER) is an Air Force Research Laboratory open call for aerospace research; white papers come first, and only selected firms get a request for proposal. A white paper is a short written pitch of your research idea. Separate Calls on set topics, such as Tactical Air-Launched Weapon Demonstrating Industrialization (TAWODI), have their own due dates, and some require facility clearances or controlled-data access. SAM.gov shows the response due date as May 10, 2031, 3:00 PM Eastern, while the BAA text says 1500 EDT on 10 May 2043.
Who can bid (7)
- Active registration in the System for Award Management (SAM) for assistance instruments (grants, cooperative agreements).
- For cost-reimbursement awards, an accounting system the Government considers adequate for tracking costs.
- HAMWC Call: to receive controlled unclassified information (CUI) documents, a current NIST SP 800-171 DoD Assessment score in the Supplier Performance Risk System (SPRS) of at least 70 and a Cybersecurity Maturity Model Certification (CMMC) Level 2 status, plus an approved DD Form 2345.
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- TAWODI Call: to receive the Secret-level documents, the appropriate facility clearance (FCL), safeguarding, and communications security (COMSEC) access authorization on NISS (the National Industrial Security System).
- HSAPS Call: a selected white paper leads to a request for proposal, and the offeror must bid on Task Order 1 (POETICS) to be eligible for the IDIQ award.
- Science and Technology (S&T) protection package: a Standard Form 424 Senior/Key Person Profile (Expanded) for all senior and key personnel, a Security Program Plan, and Privacy Act consent forms.
- If the effort is export controlled, a certified DD Form 2345 with the proposal.
How to submit: Open BAA white papers: email to the PACER central inbox, AFRL.RQ.PACERBAA@us.af.mil. Calls: as each Call says (the HAMWC Call used DoD SAFE, the Department of Defense secure file drop). White papers cannot go through Grants.gov., due May 10, 2028, 3:00 PM EDT (the notice text says May 10, 2031, 3:00 PM Eastern). What to include is under Full summary below. Check the solicitation's instructions on SAM.gov.
Things to watch (10)
- Serious: Two steps: white paper first, then invited proposal. Only white papers are due in step one; only firms whose white papers are selected get a request for proposal, so a business that skips step one cannot send a proposal.
- Serious: TAWODI Call needs facility clearance for classified documents. The Secret-level performance parameters and related documents go only to firms with the right facility clearance, safeguarding and COMSEC access, which most small businesses lack.
- Serious: HAMWC Call controlled-data access needs a 70+ SPRS score and CMMC Level 2. Firms without a current NIST SP 800-171 score of at least 70 in SPRS, and CMMC status, do not get the Call's controlled documents.
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- Serious: HSAPS Call: must bid on Task Order 1 to be in the IDIQ. A selected white paper leads to a request for proposal, and skipping Task Order 1 means no spot in the IDIQ or its future task orders.
- Worth checking: Each Call has its own due dates and rules. Calls for white papers or proposals on specific topics are issued over the life of the BAA, and each sets its own due date, contacts and limits, so a business must watch SAM.gov for them.
- Worth checking: Cost-reimbursement awards need an adequate accounting system. Most awards are expected to be cost-reimbursement, and a firm without an accounting system the Government accepts may not win one.
- Worth checking: Science and Technology protection package. Forms for key personnel and a security program plan are required, and a weak plan can make a proposal unawardable.
- Worth checking: Gold Standard Science agreement for assistance instruments. Grant and similar white papers must show benchmarks and agree to a Gold Standard Science statement, and these are screened go/no-go.
- Worth checking: U.S. citizens only for base and network access. Staff who need base, lab or Government network access must be U.S. citizens unless the Contracting Officer waives it in writing.
- Minor: TAWODI classified proposal volumes expected but not required. Amendment 1 changes the earlier statement that no classified volumes are expected, so firms with classified content should ask the contracting point of contact how to deliver it.
Read from the notice and 12 attachments. 51 of 63 not read. Show which files.
- Atch 1 Supplemental Instructions for Assistance Instruments.docx (read)
- Atch 1 Supplemental Instructions for Assistance Instrument Proposals.pdf (read)
- Atch 4 Section L - Instructions Conditions and Notices to Offerors.pdf (read)
- FA2391-23-S-2403_Revised April 2025.pdf (read)
- Atch 7 SOW Supplemental Requirements.docx (read)
- Atch 8 SOW Supplemental Requirements.pdf (read)
- TAWODI Call Amendment 1 dated 22 October 2026.pdf (read)
- HSAPS CALL Amendment 1 dated 13 July 2026.pdf (read)
- HAMWC Call Amendment 3 dated 6 April 2026.docx (read)
- HAMWC Call Amendment 2 dated 31 March 2026.pdf (read)
- HAMWC Call Amendment 1 dated 17 March 2026.pdf (read)
- Amendment 01-MASTR Call-07 MAR 2025.pdf (read)
- Amendment 02-MASTR Call-13 MAR 2025.pdf: not summarized: open it on SAM.gov
- Amendment 03-MASTR Call-19 Mar 2025.pdf: not summarized: open it on SAM.gov
- Amendment 04 -MASTR Call-07 APR 2025.pdf: not summarized: open it on SAM.gov
- Amendment 05 - MASTR Call-11 APR 2025.pdf: not summarized: open it on SAM.gov
- Amendment 06 - MASTR Call-23 APR 2025.pdf: not summarized: open it on SAM.gov
- Amendment PACER White Paper Call - FC EMA Complete Package 1.pdf: not summarized: open it on SAM.gov
- Call for MSIPPT Amend 1.pdf: not summarized: open it on SAM.gov
- Call for AEPO Amendment 1 26 Nov 24.pdf: not summarized: open it on SAM.gov
- Call for SNAPP Amendment 1 24 Oct 24.pdf: not summarized: open it on SAM.gov
- Amendment 1--CC DROIDS CAll -QA--4 Aug 2023.pdf: not summarized: open it on SAM.gov
- Amendment 2--CC DROIDS Call-QandA--18 Aug 2023.pdf: not summarized: open it on SAM.gov
- Amendment 3--CC DROIDS Call-QA--24 Aug 2023.pdf: not summarized: open it on SAM.gov
- Amendment 4--CC DROIDS Call QandA--31 Aug 2023.pdf: not summarized: open it on SAM.gov
- CALL for TAWODI dated 9 Oct 2026.pdf: not summarized: open it on SAM.gov
- Broad Agency Announcement_15 Jul 2026.pdf: not summarized: open it on SAM.gov
- Atch 2 AFRL Addendum and Award DoD Articles.docx: not summarized: open it on SAM.gov
- Atch 3 Section K_Reps and Certs.docx: not summarized: open it on SAM.gov
- Atch 4 R-DFAR252.215-7993 Proposal Adequacy Checklist.pdf: not summarized: open it on SAM.gov
- Atch 5 Contract Data Requirements List.pdf: not summarized: open it on SAM.gov
- Atch 8 (RFO-based) Research and Related Senior and Key Person Profile Worksheet.pdf: not summarized: open it on SAM.gov
- Atch 9 (non-RFO SF 424 Research and Related Key Persons V4.0.pdf: not summarized: open it on SAM.gov
- Atch 10 Privacy Act Statement for Covered Individuals (1).pdf: not summarized: open it on SAM.gov
- Atch 12 AFRLI 61-113.pdf: not summarized: open it on SAM.gov
- CALL for HSAPS dated 17 June 2026.pdf: not summarized: open it on SAM.gov
- Call for HAMWC dated 16 March 2026.pdf: not summarized: open it on SAM.gov
- CALL for VOLARE dated 21 JULY 2025.pdf: not summarized: open it on SAM.gov
- HiTEMP Call Pacer Broad Agency Announcement.pdf: not summarized: open it on SAM.gov
- Atch 2 Model Contract FA2391-24-C-B044.pdf: not summarized: open it on SAM.gov
- Atch 3 Section K - Representations and Certifications.pdf: not summarized: open it on SAM.gov
- Atch 5 DFARS 252.215-7009 Proposal Adequacy Checklist.pdf: not summarized: open it on SAM.gov
- Atch 6 Contract Data Requirements List (CDRLs).pdf: not summarized: open it on SAM.gov
- Atch 9 (FAR-based) Research and Related Senior and Key Person Profile Worksheet.pdf: not summarized: open it on SAM.gov
- Atch 9 (non-FAR) SF 424 Research and Related Key Persons V4.0.pdf: not summarized: open it on SAM.gov
- Atch 11 AFRLI 61-113.pdf: not summarized: open it on SAM.gov
- Atch 12 Privacy Act Statement for Covered Individuals.pdf: not summarized: open it on SAM.gov
- Call for MASTR 27 Jan 25.pdf: not summarized: open it on SAM.gov
- PACER White Paper Call - FC EMA Complete Package.pdf: not summarized: open it on SAM.gov
- Call for MSIPPT.pdf: not summarized: open it on SAM.gov
- CALL for AEPO 28 Oct 24 .pdf: not summarized: open it on SAM.gov
- CALL For SNAPP 04 Sep 24.pdf: not summarized: open it on SAM.gov
- Call For CRONUS 20 Mar 24.pdf: not summarized: open it on SAM.gov
- Call for OPTIML dated 01 Feb 2024.pdf: not summarized: open it on SAM.gov
- CALL for OPTIML dated 27 October 2023 - CANCELLATION of First Step.pdf: not summarized: open it on SAM.gov
- Call for CC DROIDS--27 July 2023.pdf: not summarized: open it on SAM.gov
- Atch 11 BAA Attachment Security Program Questionnaire.pdf: not summarized: open it on SAM.gov
- Atch 10 BAA Attachment - Security Program Questionnaire.pdf: not summarized: open it on SAM.gov
- CALL for OPTIML and Attachments dated 27 October 2023.pdf: not summarized: open it on SAM.gov
- CALL for INNATE 08 AUG 2023 and Attachments.pdf: not summarized: open it on SAM.gov
- Call for CC DROIDS Attachments.pdf: not summarized: open it on SAM.gov
- Atch 7 DD Form 254.pdf: not summarized: open it on SAM.gov
- Atch 6 DD Form 254.pdf: not read (access is restricted): request it on SAM.gov
Full summary
What they want
- Research and development white papers on aerospace technology: study efforts on novel concepts, and work to mature specific technologies to the right technology readiness level for their end use.
- High-speed systems work for Mach 3+ vehicles: power and thermal management, multi-Mach operations, durability, mission systems, and vehicle integration and analysis.
- Power and controls work for military air vehicles, such as cooperative control of unmanned aerial vehicles and autonomous air combat tactics.
- TAWODI Call (Amendment 1): a 48-month foundational baseline plus optional sprints, with a capstone test event in Optional Sprint 4.
- High-Speed Aero-Propulsion Scythe (HSAPS) Call: hypersonic engines able to operate at or above Mach 5, under an indefinite-delivery, indefinite-quantity (IDIQ) contract whose first task order is POETICS.
- Hypersonic Affordable Mass Weapon Concepts (HAMWC) Call: a 48-month foundational baseline estimated at $750,000–$1,250,000, with optional sprints 1 to 4.
- Earlier MASTR Call: an IDIQ plus a Capabilities Study task order of $10,000.00–$15,000.
- Contract type
- The Air Force may award any contract type under the FAR, an Other Transaction (OT) for prototype or research, a grant or a cooperative agreement. Cost-reimbursement contracts (cost-plus-fixed-fee: costs plus a set fee; cost; cost share) are generally anticipated. Some Calls create IDIQ contracts.
- Period of performance
- Not stated for the BAA as a whole; each Call and award sets its own. The TAWODI and HAMWC Calls describe a 48-month foundational baseline with optional sprints.
- Place of performance
- USA
- Estimated value
- $500M ceiling on any individual award resulting from a white paper, and $500M cumulative ceiling on all awards from one Call (the BAA's estimated program cost).
- Contract vehicle
- Open two-step broad agency announcement (BAA: an open invitation for research ideas) with Calls; some Calls lead to multiple-award IDIQ contracts (HSAPS, MASTR).
- How they'll choose
- Peer or scientific review. Each proposal is rated Selectable or Not Selectable, based on the evaluation, importance to agency programs and funding. Technical comes first and cost/price second.
- Offers due
- May 10, 2028, 3:00 PM EDT (the notice text says May 10, 2031, 3:00 PM Eastern) (from the version posted Oct 22, 2026; amended since)
- How to submit
- Open BAA white papers: email to the PACER central inbox, AFRL.RQ.PACERBAA@us.af.mil. Calls: as each Call says (the HAMWC Call used DoD SAFE, the Department of Defense secure file drop). White papers cannot go through Grants.gov.
- Page limits
- White paper page limits are strictly enforced, but the open BAA's limits are in a part of the BAA that was not read. In the earlier MASTR Call, the IDIQ technical volume was limited to 25 pages and the task order technical volume to 6 pages.
What they'll judge offers on
- Technical: understanding of the scope of the technical effort; soundness of the technical approach (major technical risks, feasible mitigation, related experience and qualifications of technical personnel); potential to transition the deliverables to future Government needs, including any proposed limits on technical data or software
- Cost/Price: realism of the proposed cost; second order of priority
- For grants and other assistance instruments: Gold Standard Science go/no-go screening, then technical merits, then potential relationship to Department of War (DoW) missions, then cost realism
What to include when you submit
- Send open BAA white papers to the PACER central inbox; white papers sent directly to technical or contracting contacts will not be reviewed.
- For each Call, follow the Call's own due date, contacts and submission method.
- For grants and other assistance instruments, put an SF 424 (R&R) application form on the white paper as the cover page, with the Research and Related Senior/Key Person Profile (Expanded) form and the Research and Related Personal Data form.
- Security package: a Security Program Plan with a completed Security Program Questionnaire, plus a Privacy Act Statement consent form for each covered individual, signed by the applicant as sponsor.
- For R&D grants, include a data management plan, generally no more than 2 pages.
- For assistance instruments, include clear benchmarks for measuring success and a commitment to Gold Standard Science (GSS).
- If the effort is subject to export control, submit a certified DD Form 2345, Militarily Critical Technical Data Agreement, with the proposal.
- TAWODI Call: include cost details for each Optional Sprint, cost the foundational baseline for the entire 48 months, and include all costs to run the capstone test within Sprint 4.
- HAMWC Call: the white paper covers the foundational baseline and includes rough order of magnitude (ROM) cost estimates for optional sprints 1-4.
- HSAPS Call: discuss the technical approach at both the IDIQ and task order level, with a ceiling ROM for the IDIQ and a ROM for the task order's base and options.
After award, you must have
- Employees who need access to Air Force bases, AFRL facilities or Government IT networks must be U.S. citizens, unless the Contracting Officer grants a written waiver. A permanent resident card does not count. From Atch 8 SOW Supplemental Requirements.pdf:
…must be U.S. citizens. For the purpose of base and network access, possession of a permanent…
Current contractor
No incumbent is named. The BAA anticipates multiple awards, and the Air Force may award zero, one or more contracts.
Not in the notice text
- The current BAA (Revision 4, posted July 15, 2026), the Call documents (TAWODI dated October 9, 2026, HSAPS dated June 17, 2026, HAMWC dated March 16, 2026, and others), the model contract and the cost data lists are attached on SAM.gov but not read.
- The BAA text that was read (revised April 2025) had its middle part cut, so the open BAA's white paper format, page limits and evaluation steps are not shown here.
- White paper due dates for the TAWODI and HSAPS Calls are not in the text read.
- Which response due date governs: SAM.gov's May 10, 2031 or the BAA text's May 10, 2043.
- SAM.gov states no set-aside; the BAA gives a 1,000-employee small business size standard for NAICS 541715.
- Period of performance and value for most Calls and for the open BAA white papers are not given in the text read.
- The DD Form 254 (security classification form) is controlled and must be requested on SAM.gov; Call documents that are controlled unclassified or classified are released only on request.
Eligibility and how to respond
- No set-aside: any business, large or small, can bid unless the notice says otherwise.
- How to submit, from the AI summary: Open BAA white papers: email to the PACER central inbox, AFRL.RQ.PACERBAA@us.af.mil. Calls: as each Call says (the HAMWC Call used DoD SAFE, the Department of Defense secure file drop). White papers cannot go through Grants.gov. Check it in the notice before you send anything.
Notice details
- Posted
- Aug 11, 2023
- Notice type
- Solicitation
- Office
- FA2391 USAF AFMC AFRL PZL AFRL RQKP, Wright Patterson AFB, OH
- Product/service code
- AC12 · National Defense R&D Services; Department of Defense – Military; Applied Research
- Business type
- Engineering, architecture & research (FedReady's grouping, from NAICS 541715)
- Versions
45 versions have been posted, newest first.
- Oct 27, 2026 · Amendment 0044Due May 10, 2031
- Oct 22, 2026 · Amendment 0043Due May 10, 2031
- Oct 9, 2026 · Amendment 0042Due May 10, 2031
- Jul 15, 2026 · Amendment 0041Due May 10, 2031 (changed)
- Jul 13, 2026 · Amendment 0040Due May 10, 2028
- Jun 17, 2026 · Amendment 0039Due May 10, 2028
- Apr 6, 2026 · Amendment 0038Due May 10, 2028
- Mar 31, 2026 · Amendment 0037Due May 10, 2028
- Mar 17, 2026 · Amendment 0036Due May 10, 2028
- Mar 16, 2026 · Amendment 0035Due May 10, 2028
- Jul 21, 2025 · Amendment 0034Due May 10, 2028
- Jul 11, 2025 · Amendment 0033Due May 10, 2028
- Jun 18, 2025 · Amendment 0032Due May 10, 2028
- Jun 17, 2025 · Amendment 0031Due May 10, 2028
- May 6, 2025 · Amendment 0030Due May 10, 2028
- Apr 23, 2025 · Amendment 0029Due May 10, 2028
- Apr 11, 2025 · Amendment 0028Due May 10, 2028
- Apr 7, 2025 · Amendment 0027Due May 10, 2028
- Mar 21, 2025 · Amendment 0026Due May 10, 2028
- Mar 19, 2025 · Amendment 0025Due May 10, 2028
- Mar 13, 2025 · Amendment 0024Due May 10, 2028
- Mar 7, 2025 · Amendment 0023Due May 10, 2028
- Feb 28, 2025 · Amendment 0022Due May 10, 2028
- Jan 31, 2025 · Amendment 0021Due May 10, 2028
- Jan 31, 2025 · Amendment 0020Due May 10, 2028
- Jan 27, 2025 · Amendment 0019Due May 10, 2028
- Jan 16, 2025 · Amendment 0018Due May 10, 2028
- Dec 10, 2024 · Amendment 0017Due May 10, 2028
- Nov 26, 2024 · Amendment 0016Due May 10, 2028
- Oct 28, 2024 · Amendment 0015Due May 10, 2028
- Oct 24, 2024 · Amendment 0014Due May 10, 2028
- Sep 4, 2024 · Amendment 0013Due May 10, 2028
- Jun 20, 2024 · Amendment 0012Due May 10, 2028
- Jun 5, 2024 · Amendment 0011Due May 10, 2028
- Mar 20, 2024 · Amendment 0010Due May 10, 2028
- Feb 1, 2024 · Amendment 0009Due May 10, 2028
- Feb 1, 2024 · Amendment 0008Due May 10, 2028
- Oct 27, 2023 · Amendment 0007Due May 10, 2028
- Aug 31, 2023 · Amendment 0006Due May 10, 2028
- Aug 25, 2023 · Amendment 0005Due May 10, 2028
- Aug 18, 2023 · Amendment 0004Due May 10, 2028
- Aug 11, 2023 · Amendment 0003 (this version)Due May 10, 2028
- Aug 8, 2023 · Amendment 0002Due May 10, 2028
- Jul 27, 2023 · Amendment 0001Due May 10, 2028
- May 11, 2023 · SolicitationDue May 10, 2028
- Attachments
Past awards and competition
Who has won work like this before, the likely incumbent, and what similar contracts paid, from USAspending.gov.
Before you respond
- How to respond to a solicitation (8 steps)
- How to read a government solicitation
- How to price a government contract
Terms on this notice: Solicitation
Full notice text from SAM.gov
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