Multi-Pro deals with the development of high thrust multi-functional propulsion systems for air vehicles addressing logistics, surveillance, agriculture, and the transport of people. Specifically, the developed modules can be used in all types of UAVs, drones, light and ultralight, Light Sport and experimental air vehicles including conventional take-off and landing (cTOL), vertical take-off and landing (VTOL) with their electrical, hybrid, or conventional propulsion. Using high-pressure air storage in ultra-light composite tanks the system offers a high thrust capacity, quickly releasing the accumulated energy through nozzles, making it extremely efficient for take-off, landing, and emergency scenarios. It is for many aspects a breakthrough that can heavily impact the operational ability of Drones, VTOLs and lightweight air vehicles of all kinds. It solves the limitation on safety of traditional ballistic parachutes while offering additional thrust during critical phases like take-off and landing. This is particularly advantageous for battery-powered aircraft, which often have power issues during these phases. Multi-Pro leads to: - Greater Safety: Unlike traditional parachutes that require a certain altitude to function effectively, the system can operate at low altitudes, making it suitable for urban air mobility and other low-altitude applications. - Energy Efficiency: The system achieves up to 80% thrust efficiency, providing lift and thrust with minimal energy waste. - Scalability: Applicable in delivery drones and all types of ultralights. - Low Altitude Operation: The system can be effectively used at low altitudes, where traditional parachutes are not functional - Multi-Functionality: enhancing aircraft performance during take-off and landing, reducing energy consumption, and increasing range. - Lower Environmental Impact: the system uses only air, recharging can be done very quickly with a low-cost compressor powered by photovoltaic cells.