Defendu Cube is an innovative prototype of a mobile container-based shooting range, developed as part of advanced research and development work on a new generation of training systems. The demonstration model we have developed was designed to meet rigorous ballistic safety requirements, and its specifications have been fully verified through certification. The prototype’s portable architecture allowed us to effectively test and validate the process of transporting and rapidly deploying the training base in the field. The high level of Technology Readiness Level (TRL) we have achieved now enables us to begin work toward implementing the R&D results and launching an innovative production line for the mass production of this technology.

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Ballistic Safety Validation

During the research and development of the prototype, our top priority was to ensure absolute safety. We successfully tested a system in which 100% of each projectile’s energy is contained within the test zone. At the heart of the tested system is an innovative modular bullet trap—a technology that has undergone rigorous field testing and received certification from the Military Institute of Armament Technology (WITU). The designed shielding systems (walls and ceiling), made of carefully selected materials, confirmed in research tests their full effectiveness against ammunition up to and including 7.62 mm caliber. The built demonstration model received an official certificate of approval for use from the Military University of Technology (WAT).

Material Durability Testing

A key element of the development work was the design of a structure capable of withstanding high mechanical loads over the long term. In the construction of the technology demonstrator, we used specialized, hardened HKR1000 ballistic steel. Test results showed that this material has an optimal kinetic energy absorption coefficient, while also exhibiting high resistance to fatigue degradation, corrosion, and extreme weather conditions.

Logistics and Transportation Standardization Tests

Using a structure based on the 40HC (High Cube) shipping container standard as the frame for the prototype was our strategic research objective. The goal was to overcome logistical barriers prior to the target market launch. The prototype was classified as standard cargo, allowing for seamless transport by road, sea, and rail without the need to obtain permits for oversized cargo.

Indoor Environment Optimization (HVAC)

As part of the optimization of the prototype’s functional module, we paid particular attention to the integration of advanced air exchange systems. In the test environment, we successfully implemented a high-efficiency air handling unit with an air exchange rate of 1,200 m³/h. Flow measurements demonstrated the effectiveness of the filter system in removing particulate and gaseous contaminants (including lead). Additionally, the integrated cooling and heating unit confirmed its ability to maintain stable microclimatic parameters inside the unit, regardless of extreme outdoor temperatures during test cycles.

Digital Integration, Telemetry, and IoT

The developed technology demonstrator functions as an advanced research platform integrated with intelligent management systems. The prototype uses dedicated network connectivity and a vision system for continuous monitoring and data aggregation. One of the main R&D outcomes in this area is an innovative algorithm for counting shots and estimating the wear and tear of the bullet trap’s ballistic components. The full integration of these technological solutions was the final research step necessary to develop maintenance and diagnostic procedures prior to the planned start of mass production.