Electric propulsion is already here, albeit on a small scale, and now NASA is looking ahead to the technology that would be required to power a regional aircraft in 10-20 years or a narrowbody airliner in 30-40 years. But the agency plans to start small, with tests to first understand, then model the behavior and efficiency of electric propulsion system components. These will feed into ground, and potentially flight, tests of a distributed propulsion system that would be closely ...


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