GE Aerospace is working with NASA to modify the company’s Passport 20 engine with hybrid-electric components to test under the NASA Hybrid thermally Efficient Core project that aims to reduce fuel burn, AIN reported. GE hopes to use these engines on next generation single-aisle airliners. This work builds on GE Aerospace and NASA’s concurrent work on the NASA Electrified Powertrain Flight Demonstration program, which itself looks to rapidly mature electric propulsion technologies to start electrifying commercial airlines in 2035.