Contract opportunity

HERMES BAA CALL: Rotating Detonation Rocket Engine-Combined Cycle (RDRE-CC) Flight Demonstration

Special Notice from Department of Defense.

Data as of Oct 24, 2026. Sources: SAM.gov and Grants.gov. Snapshot govcon-directory-20261024T104923Z-2151694.

This product uses the Grants.gov API but is not endorsed or certified by the U.S. Department of Health and Human Services. Counts and totals are computed by DSE from public SAM.gov and Grants.gov notices. Text from Grants.gov may be shortened or have contact details removed. The original notice on Grants.gov is the authoritative version.

Closing in 24 days

Notice details

Agency
Department of Defense
Sub-tier agency
DEPT OF THE AIR FORCE
Notice type
Special Notice
Solicitation number
FA9300-20-S-0001-CALL-RDRE-CC
NAICS
541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Product/service code
AC11
Place of performance
Edwards, California
Posted
Oct 23, 2026
Response deadline
Nov 17, 2026
Source
SAM.gov

Description

============================================== AMENDMENT 0002 - NOTICE OF THE USE OF NON-GOVERNMENT ADVISORS & RELEASE OF REVISED ATTACHMENT 2 (v2) ============================================== The purpose of this update is to notify interested parties of two critical administrative and technical updates to the subject 2-Step Call: 1. RELEASE OF REVISED TECHNICAL QUESTIONS & ANSWERS (v2): The Government has released v2 of the Controlled Technical Q&As (Distribution C) to provide additional clarification. Specifically, a new clarification has been added as Question 2.3, "Air-Launched Flight Demonstration." As a result of this insertion, the former Questions 2.3 and 2.4 have shifted to Questions 2.4 and 2.5, respectively. All vetted contractors must request access to the updated attachment: "Attachment 2 - Call Q&A v2 (Distribution C)" via the SAM.gov "Attachments" portal. You MUST enter your company's CAGE Code in the "Reason for Request" text box to facilitate rapid cross-referencing against our registration log.** 2. All prospective offerors are hereby notified that the Government intends to utilize a non-government advisor to provide technical advisory support during the evaluation of Phase I White Papers and subsequent Phase II Proposals resulting from this Call. a. ADVISOR ENTITY: Technical advisory support will be provided by an authorized subcontractor under Sierra Lobo, Inc. (SLI) (Contract FA930023F6001). b. ADVISORY CAPACITY ONLY: The advisor's role will be

Summarized from the official notice. The description is shortened; read the full text on the official notice.

Official notice

View on SAM.gov →

Requirements and amendments are controlled by the official notice.

DSE verdict

The DSE fit verdict for this notice is available to DSE GovCon subscribers. It is not published on this page.

See DSE GovCon plans →

Prior awards (USAspending)

Department of Defense obligated $14,777,575 under NAICS 541715 on awards whose period of performance started in the last 12 months.

Source: USAspending.gov, U.S. Department of Treasury, Bureau of the Fiscal Service, https://www.usaspending.gov. Accessed Oct 24, 2026. Award totals are computed by DSE from USAspending.gov award data.

Similar open notices

  1. Common Autonomous Multi-Domain Launcher (CAML)-Lite Prototype EffortClosing in 2 daysDEPT OF DEFENSE · Posted Oct 24, 2026 · Closes Oct 26, 2026
  2. NSWC-PHD MATAC OTA Request for Prototype Proposals: Prototypes and Experiments Rapid Fielding Sites (PERFS)Closing in 4 daysDEPT OF DEFENSE · Posted Sep 17, 2026 · Closes Oct 28, 2026
  3. Unison Proposers Day AnnouncementClosing in 5 daysDEPT OF DEFENSE · Posted Oct 21, 2026 · Closes Oct 29, 2026
  4. CY28 FFP ServicesClosing in 6 daysDEPT OF DEFENSE · Posted Oct 20, 2026 · Closes Oct 30, 2026
  5. MTEC Solicitation Summary: Fiscal Year 2026 Multi-Topic Request for Project ProposalsClosing in 6 daysDEPT OF DEFENSE · Posted Oct 10, 2026 · Closes Oct 30, 2026

Get free alerts

Email alerts for notices like this one are free on DSE GovCon Intelligence.

Set up free alerts →

Frequently asked questions

When is the response deadline?

The published deadline is Nov 17, 2026. That is 24 days after the data date.

What NAICS code applies?

NAICS 541715, Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology).

Which agency issued this notice?

Department of Defense.

Where is the official notice?

The link under Official notice opens the source listing.