The Cross-Wind Blower by VIRO – Mobile Crosswind Simulation for eVTOLs, Drones, and Light Aircraft

Realistic flight testing under extreme wind conditions

With the Cross-Wind Blower developed by VIRO, we offer the aerospace industry a unique and mobile solution for crosswind simulation. Whether it’s for validating eVTOLs, drones, or light aircraft – our wind generator enables precise, repeatable tests under controlled conditions. This helps our clients meet certification standards such as SC-VTOL, CS-23 or CS-27, and actively contributes to enhanced flight safety.

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Crosswind simulation is essential

Technical specifications of the VIRO Cross-Wind Blower:

Wind area / outlet size: 25 m²
Maximum airspeed: 35 knots (18 m/s) – steady or gust mode
Measurement system: 17 high-precision pitot tubes for real-time airflow data
Drive system: 4 high-performance electric fans, each with 200 kW power
Control system: Intelligent Linux-based Moxa iPC with Siemens frequency inverters
Flow conditioner: Eggcrate elements with 150 mm cell size for laminar airflow
Mobility: Fully mounted on a towable platform with 8 solid tyres, 4 wheel assemblies, 7 lashing points and a tow bar
Total weight: 32 tonnes

Flexible deployment for maximum efficiency

Thanks to its mobile platform design, the Cross-Wind Blower can be used directly on-site at the test location – with no need for complex infrastructure or wind tunnel conditions. Whether for development teams, testing centres or as part of formal certification processes, this system saves time, cuts costs, and improves the relevance and reliability of test results. Potential application sectors include: Urban Air Mobility and eVTOL manufacturers, Drone developers and UAV test centres, Aerospace supply industry, Research institutions and universities, Testing and certification organisations.

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VIRO – Your partner for demanding aerospace solutions

With decades of experience in aerospace engineering, VIRO develops innovative tools and test systems for complex challenges. The Cross-Wind Blower is the result of interdisciplinary expertise in mechanics, aerodynamics, control systems, and manufacturing – made in Europe, built to meet the highest standards of safety and quality.