Electra Aero recently unveiled a new conceptual aircraft design for next-generation airliners that was developed as part of NASA’s Advanced Aircraft Concepts for Environmental Sustainability (AACES) 2050 program. Electra’s study explores how targeted electrification, advanced aerodynamics, and integrated airframe-propulsion design can transform the efficiency and competitiveness of aircraft with 100+ passengers by mid-century. Although the hybrid-electric-powered design still uses hydrocarbon-based fuels, it’s intended to serve as a practical interim step. The configuration also supports a twin-aisle cabin layout within a narrowbody aircraft class, unlocking improved passenger comfort and more efficient boarding and deplaning. The hybrid-electric propulsion system uses many of the lessons learned in the development of Electra’s nine-passenger EL9, an ultra-short takeoff and landing commuter airliner, expected to begin flight testing in 2027.