The Department of Defense (DoD) is seeking proposals for the development of a Suborbital Hover Vehicle-Reusable Rocket (SHVRR). The objective of this solicitation is to develop an innovative concept, manufacturing implementation, and system hardware for the SHVRR. The technology being solicited is the Rotating Detonation Rocket Engine (RDRE), which has the potential to significantly improve the size, performance, stability, and unit cost of liquid rocket engines. The SHVRR will be used for various DoD applications, including Tactically Responsive Space Access (TRSA) orbital launch, small point-to-point delivery, and rocket-powered Hypersonic Testbed Vehicles. The project will involve multiple tethered vertical hover flights of the propulsion pathfinder airframe using a flight weight RDRE and engine controller provided by the government. The project duration will include Phase I, Phase II, and Phase III, with specific tasks such as assessing technical merit, completing design and manufacturing, conducting hover tests, and finalizing reporting/documentation. The funding specifics and performance goals will be provided in the solicitation document. The application due date for this solicitation is October 18, 2023. For more information, visit the DoD SBIR 23.3 BAA on grants.gov.