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Hybrid Electric Propulsion Systems

The transition toward hybrid and fully electric propulsion (H)EPS represents one of the most significant transitions in modern aerospace. We support you in developing and certifying these technologies — combining the rigor of traditional safety and reliability methods with the agility required for innovation. Our team includes engineers with backgrounds from Siemens eAircraft and Rolls-Royce Electrical, bringing substantial experience in the design, integration, and verification of electric propulsion architectures and electric propulsion units for VTOL, fixed-, and rotary-wing applications.

Hybrid Electric Propulsion Systems
Systems Engineering

Through our experience as electric propulsion system lead engineer, we acquired keen knowledge on the development and optimization of propulsion system architectures, electric power distribution networks, and energy management systems in line with relevant SC-VTOL and CS-23/25/27/29 requirements. We have supported customers in developing multi-channel power distribution architectures, high-voltage network control logic, ensuring load balancing, fault isolation, and redundancy are properly implemented from the earliest design stages.

Safety & Reliability Engineering

Our Safety & Reliability Engineering team applies ARP-4761A principles to assess and substantiate H(EPS) architectures. We developed structured failure matrices for hybrid and electric propulsion systems, analyze power-source dependency, and perform FHA, PSSA, and SSA studies to demonstrate compliance with EASA 1309-series safety objectives. Early Intrinsic Hazard Analyses (IHA) help identify design vulnerabilities such as battery thermal events or inverter isolation faults early on in the system level development.

Software Development

Our Software Development and Product Security experts support the certification of power management, propulsion control, and energy monitoring software developed under DO-178C and DO-326A cybersecurity frameworks. We ensure that software assurance and security risk management — covering areas such as data integrity, command authenticity, and protection against cross-domain interference — are fully integrated within the propulsion system’s overall safety case.

By combining practical experience from Siemens eAircraft and Rolls-Royce Electrical with a structured, standard-driven approach, we empower you to develop certifiable, reliable, and safe hybrid and electric propulsion systems. From concept definition to certification support, we help bridge the gap between innovative propulsion concepts and compliant, production-ready aerospace systems.