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b"Electric cars have become pretty common. The next round of 'lectric just might be airplanes. In fact, NASA has built an electric plane called the X-57. It's a test bed for new propulsion systems that don't burn fuel. For more details, Federal Drive with Tom Temin talked with the project manager for flight demonstrations and capabilities at NASA's Armstrong Flight Research Center, Brent Cobleigh.\\nLearn more about your ad choices. Visit megaphone.fm/adchoices"