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Request for proposalsFederal buyer

Fox Tail

DEPT OF DEFENSE, Virginia · DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) · DEF ADVANCED RESEARCH PROJECTS AGCY
Verified 20 h ago
Responses dueFri, Jan 29, 202711:00 AM ET · Virginia time114 days left
PostedThu, Sep 24No amendments since
Solicitation no.DARPA-PS-26-136SAM.gov
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What the agency is buying

by RFPFinder from the notice and attachments; the solicitation governs

DARPA is seeking innovative proposals for research in extreme-scale hydrodynamics, including high amplitude wave propagation, very high Reynolds number flows, and abrupt phase changes. This is an Other Transaction Agreement for prototypes, with payments made for the completion of milestones.

Scope

  • Research in extreme-scale hydrodynamics, including high amplitude wave propagation.
  • Innovative theoretical and computational modeling approaches relying on first principles.
Submission: portalDays to respond: 114
CompetitionLikely competitive

1 signal behind this label (incumbent, repeat winner, short window, brand-name or sole-source language, prior sources sought). Pro shows them with sources.

From USAspending awards and the notice text, recomputed nightly (Oct 7). A signal, not a verdict.

How to get the bid documents

  1. Download the 7 documents below (no portal account needed)
  2. Check the submission requirements in the compliance checklist
  3. Submit by portal before 11:00 AM ET on Jan 29, 2027
Documents · 7 items, 7 filesDownload all (zip)
  • PDF
    DARPA-PS-26-136.pdf304 KB · 13 pages
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  • DOCX
    Attachment_K_CLASSIFIED_ADDENDUM_AND_SECURITY_CLASS_GUIDE_REQUEST_FORM.docx37 KB
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  • DOCX
    Attachment_J_Representations_and_Certifications.docx33 KB
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  • XLSX
    Attachment_I_Schedule_of_Milestones_and_Payments.xlsx22 KB
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  • DOCX
    Attachment_G_Model_Other_Transaction_for_Agreement.docx94 KB
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  • XLSX
    Attachment_F_DARPA_Cost_Proposal_Spreadsheet.xlsx557 KB
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  • DOCX
    Attachment_E_Proposal_Volume_II__Cost_Proposal_.docx50 KB
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Open the original listing on SAM.gov

Details

Place of performance
ARLINGTON, Virginia
Buyer type
Federal
Notice type
Solicitation
Solicitation no.
DARPA-PS-26-136
NAICS
NAICS 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)): 123 open RFPs
PSC
PSC AC12
Contract type
Other Transaction Agreement for Prototypes from attachment p.1
Local presence
Not required
Amendments
None since Sep 24
Contact
BAA Coordinator
Office
DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) · DEF ADVANCED RESEARCH PROJECTS AGCY
Email
FoxTail@darpa.mil

Not stated in the notice: estimated value, period of performance. Check the bid documents.

Contact details from the source notice. Contact the buyer only about this solicitation.

Key dates

Thu, Sep 24, 2026Posted
Not statedQuestions due
Fri, Jan 29, 2027 · 11:00 AM ETResponses due · 114 days left

Change log

verified Wed, Oct 7 · 12:30 AM ET

No amendments since posting on Thu, Sep 24, 2026; verified Wed, Oct 7 · 12:30 AM ET.

Change log starts Oct 5, 2026 (tracking began); earlier amendments at SAM.gov are being pulled in.

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Notice as published

Fox Tail

The Defense Advanced Research Projects Agency (DARPA) is soliciting innovative proposals in the general area of extreme-scale hydrodynamics, including, but not limited to, high amplitude wave propagation, very high Reynolds number flows, and abrupt phase changes. Proposed research should investigate innovative theoretical and computational modeling approaches relying on first principles-based closures of the governing laws of fluid motion under such conditions.

What this office paid before

USAspending.gov, last 36 months

25 awards matched · tier 1: this contracting office (HR0011) + PSC AC12. Most recent:

  • Jun 8, 2026ENGINEERING BIOLOGY RESEARCH CONSORTIUMRISK ANALYSIS AND POLICY RECOMMENDATIONS FOR TECHNICAL OUTPUTS OF THE DARPA GENERATIVE OPTOGENETICS PROGRAMHR001126CE079 · DEFINITIVE CONTRACT · Defense Advanced Research Projects Agency · ends Jun 7, 2027$188K
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Awards updated Tue, Oct 6, 2026 · 4:43 AM ET.

This contracting office

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