Subtitle: A Modular Approach to Sustainable Regional Aviation 

Regional aviation is essential for connectivity, yet short-haul flights are disproportionately carbon-intensive. Our hybrid-electric propulsion system offers a practical, scalable solution to reduce emissions while maintaining operational efficiency.

The Challenge

• Short-haul flights produce high emissions per passenger.
• Rising fuel costs and regulations strain profitability.
• Existing fleets lack affordable retrofit options.

The Solution

A modular hybrid-electric propulsion system integrating electric motors with conventional turbines:

• Electric Mode: Taxi, takeoff, climb.
• Turbine Mode: Efficient cruise.
• Hybrid Mode: AI-driven optimization.

Key Innovations

• Modular, retrofit-ready design.
• AI-based energy management.
• Battery-turbine synergy.
• Scalable for 30–100-seat jets.

Impact

• Environmental: 30–40% CO₂ reduction.
• Economic: Lower fuel and maintenance costs.
• Societal: Quieter airports, cleaner skies.

Contest Fit

Visionary yet practical, this concept aligns with SAE’s mission to spotlight innovations that benefit society and the global economy.

3 – Technical Appendix

Propulsion Architecture

• Battery Pack: High-energy-density lithium-sulfur or solid-state.
• Electric Motors: Lightweight, low-noise nacelle integration.
• Turbine Engine: Adapted turbofan for hybrid use.
• Power Electronics: Smart converters/inverters.
• Modular Integration: Retrofit-ready plug-and-play units.

Energy Management System

• AI Algorithms: Predictive mode switching.
• Dynamic Load Balancing: Real-time optimization.
• Thermal Management: Efficient cooling under demand.
• Safety Redundancy: Dual-mode fail-safe operation.

Scalability & Future Research

• Adaptable for 30–100-seat jets.
• Ready for hydrogen fuel cells or SAF integration.
• Potential for autonomous optimization with machine learning.