FreeTender
Accepting bidstenderUnited States

Fox Tail — R&D- Defense System: Aircraft (Applied Research/Exploratory Development)

Issued by DEPT OF DEFENSE · DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) · DEF ADVANCED RESEARCH PROJECTS AGCY · via SAM.gov — US federal contract opportunities

Verify & apply on the official portal →
Published
24 Sept 2026
Closes
29 Jan 2027, 16:00 UTC
Reference
DARPA-PS-26-136
Location
United States
Sector
Research, Studies & Evaluation

Details

DEPT OF DEFENSE · DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) · DEF ADVANCED RESEARCH PROJECTS AGCY is soliciting Fox Tail — R&D- Defense System: Aircraft (Applied Research/Exploratory Development). Solicitation number DARPA-PS-26-136. Classified under NAICS 541715 — Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology). Product/service code AC12 — R&D- DEFENSE SYSTEM: AIRCRAFT (APPLIED RESEARCH/EXPLORATORY DEVELOPMENT). Responses are due by 29 January 2027 16:00 UTC. Posted on SAM.gov, the US federal contract opportunities system; registration is required to bid.

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.

Context for bidders

We hold 14 notices from DEPT OF DEFENSE · DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) · DEF ADVANCED RESEARCH PROJECTS AGCY, going back to August 2026 — 13 of them still open. There are 58 open Research, Studies & Evaluation tenders in United States. This one closes in 126 days.

Before you bid on this tender

A quick checklist to help you decide whether to bid and prepare a compliant submission for this research, studies & evaluation opportunity. Always verify the details on the official source.

  • Confirm the exact closing date and time (and time zone) on the official portal — deadlines are strict and can be revised by a corrigendum.
  • Read the full notice and every attached document, including the scope, specifications and any bill of quantities or terms of reference.
  • Check the eligibility criteria — prior similar experience, annual turnover, certifications and registrations — and make sure you qualify before investing effort.
  • Prepare any earnest-money deposit (EMD) or bid security and the required formats early; missing or wrongly-formatted documents are a common cause of rejection.
  • Note how bids must be submitted (online or physical), in what format, and whether a digital signature or portal registration is required.
  • Watch for corrigenda and clarifications right up to the deadline — requirements and dates can change.
Common bidding mistakes to avoid →Writing a winning proposal

More Research, Studies & Evaluation tenders

All Research, Studies & Evaluation tenders →

FreeTender mirrors this notice for reference. Verify the details and bid on the official portal.

Verify & apply on the official portal →