system on demand UAM first. In addition to various test systems for individual components and subsystems, a test system for the integration of test rigs for the avionics and flight control system was developed. The initial test system, based on the SoD concept, involved a combination of SoD signal types available in SET’s predeveloped signal catalogue and newly developed signal types. It comprised two racks housing measurement units, signal conditioning, fault insertion, self-test capabilities, and three System Integration Rigs serving as standard housings for Line Replaceable Units (LRUs). facilitated upgrades to subsequent program phases. Additionally, the immediate availability of documentation and building instructions from the outset streamlined the design process. By specifying signal types, adjustments to individual signal setups could be made at any time, ensuring efficient obsolescence management, and eliminating the risk of unusable systems in the future. 3 SHARING KNOWLEDGE 3 // System on Demand testing can be used throughout an aircraft’s development program ADAPTABILITY TO REQUIREMENTS As the program progressed through different phases, the test system could simply be adapted to evolving specifications of the VoloCity and the used LRUs. The testing perspective aligned seamlessly with the program’s progress, allowing for efficient upgrades by leveraging the knowledge gained during the design and integration phases. As the complexity and number of signals increased with each upgrade, the addition of a third measurement rack was necessary to accommodate new requirements. The downtime of the existing system during integration could be minimized to only 2 days, as SET’s own SoD infrastructure at the Düsseldorf site could be used for pre-validation of the new rack. The ability to reuse the existing test infrastructure and racks significantly accelerated the upgrade procedure, resulting in cost savings. SYSTEM ON DEMAND FLEXIBILITY Throughout the project with Volocopter, the flexibility and modularity of the SoD approach proved crucial. It efficiently accommodated new requirements and The SoD concept empowers eVTOL and aerospace manufacturers to overcome uncertainties and minimize delays, ensuring that testing becomes an enabler in the pursuit of future mobility solutions. Based on their extensive experience in building mechatronic aircraft components and test systems, SET is committed to sharing their knowledge to provide solutions for the future of air mobility, leveraging the expertise gained from working with a diverse range of customers. \\ Daniel Hermyt is business development manager and Christian Pastucha is head of avionics & aerospace testing at SET AEROSPACETESTINGINTERNATIONAL.COM // SHOWCASE 2024 97