Local Air Quality and Noise Improvements via Optimization of Strut-Braced Wings with Distributed Electric Propulsion

The INDIGO project, funded under the Horizon Europe programme, explores innovative aircraft configurations to reduce aviation’s environmental impact. This study focuses on the conceptual design of a midrange aircraft featuring Large Aspect-Ratio Wings (LARW) and Distributed Hybrid Electric Propulsion (DHEP), assessed using a  comprehensive Multi-Disciplinary Analysis and Optimization (MDAO) framework.

The framework integrates models for aerodynamics, structural weight, powertrain performance, and noise, enabling the optimization of objectives such as fuel efficiency, local air quality, and noise impact on airport vicinities.

Preliminary results highlight the significant potential of LARW-DHEP to reduce emissions and noise, particularly during low-altitude operations.
This work underscores the critical role of MDAO techniques in developing sustainable and efficient next-generation aircraft designs.