Quantum Cyber N.V. (NASDAQ: QUCY) filed a provisional patent application with the U.S. Patent and Trademark Office for a Coaxial Dual-Propellant Grain Solid Rocket Motor designed to extend the operational range and mission endurance of unmanned aerial vehicles in defense applications.

The rocket motor employs a coaxial architecture that places a high-thrust boost grain around a lower-thrust sustain grain, separated by a thermal barrier interlayer and transition charge. The system delivers a two-phase thrust profile with an initial boost phase of 3-8 seconds at peak thrust, followed by a sustain phase of 15-45 seconds at reduced thrust.

The motor is scalable across outer casing diameters of 30-100mm and integrates with UAV airframes in the 1-15 kg class through a detachable cradle and release mechanism. The nozzle assembly incorporates a high-density graphite throat insert rated for pressures of 3.5-5.5 MPa and temperatures exceeding 3,000 K.

According to the company, the filing aligns with Executive Order 14307, which establishes American drone dominance as a national security priority. The Department of Defense's proposed budget for fiscal year 2027 allocates an estimated $54 billion to $75 billion toward drones, autonomous warfare, and counter-UAS systems.

West Palm Beach, Florida-based Quantum Cyber describes itself as an autonomous defense technology company developing an AI-powered platform for drone warfare, counter-UAS, and border security applications. The company's portfolio includes drone warfare systems, counter-UAS technology, autonomous naval mine countermeasures, EMP shielding, and anti-drone ammunition.

The company stated that the rocket motor technology is intended to serve as the propulsion component of its multi-domain technology platform spanning air, land, and sea engagement applications.