Airport fan CFM RISE

Overview
Launched in 2021, the CFM RISE program develops and validates breakthrough propulsion technologies to reduce fuel consumption and enable next-generation commercial aircraft architectures. The program emphasizes advanced engine concepts—Open Fan, compact core designs and hybrid-electric integration—while maintaining strict durability and safety criteria.

Technologies being advanced

• Open Fan architecture: an unducted fan concept delivering step-change efficiency over ducted turbofans, designed with early focus on durability and noise reduction.
• Supercomputing and simulation: high-performance computing used to optimize aerothermal design and acoustic performance for Open Fan systems.
• Compact engine core: next-generation compressors, combustors and high-pressure turbines using advanced materials and cooling concepts for lower weight and improved life.
• Hybrid-electric propulsion: integrated hybrid-electric architectures with plans to demonstrate a megawatt-class hybrid powertrain.
• Alternative fuels and hydrogen readiness: compatibility testing with neat SAF and foundational development for hydrogen-compatible components.

Key figures
350+ tests completed
2,000+ CFM engineers supporting the program
3,000+ endurance cycles with new HPT airfoil technologies
~20% fuel burn improvement target vs. current engines

Program notes
CFM International is a 50-50 joint company between GE Aerospace and Safran Aircraft Engines. RISE is a technology development program and not a commercial product.

Technical specifications

• Program launch: unveiled in 2021.
• Primary technology areas: Open Fan, compact core, hybrid-electric propulsion, supercomputing-driven design, SAF compatibility and hydrogen readiness.
• Target fuel burn improvement: approximately 20% vs. today’s engines.
• Durability approach: early design emphasis to ensure life and reliability for new architectures.
• Testing & validation: 350+ tests completed; 3,000+ endurance cycles with new HPT airfoils.
• Team scale: 2,000+ engineers dedicated to the program.
• Demonstration goals: megawatt-class hybrid powertrain planned.
• Nature: technology development program (not a commercial product).