Hybrid-electric propulsion technology has potential to increase efficiency and reduce emissions for future aircraft applicationsLONDON, July 22, 2024 /PRNewswire/ -- Farnborough Air Show — RTX (NYSE: RTX) today announced the completion of the preliminary design review for the hybrid-electric propulsion demonstrator engine being developed as part of the SWITCH project, supported by the European Union's Clean Aviation Joint Undertaking (Clean Aviation). By combining two Collins Aerospace megawatt-class electr ...