DIRECT TO PHASE II: Highly Loaded Grain in 2.75" Form Factor
SBIR Opportunity Analysis
The U.S. Navy is seeking Direct to Phase II SBIR solutions to develop highly loaded grain propellant technology for a 2.75-inch Mk66 rocket motor, with the goal of extending range at affordable cost and improving readiness of the technology. The work includes developing and demonstrating an initial motor concept, completing detailed design review, fabricating the motor, conducting item-under-test evaluation, and supporting static fire testing and a final report to Naval Air Warfare Center Weapons Division. Key requirements include using the Mk66 case and CLWire ballistics software, increasing total impulse by 30 percent, supporting all-boost or boost/sustain thrust profiles, using min-smoke or reduced-smoke propellant, maximizing compatibility with existing motor materials, and meeting military thermal and shock/vibration environments. The solicitation is in pre-release, opens May 6, 2026, and closes June 3, 2026 at 4:00 PM UTC.