Demo
    A small, propeller-driven aircraft is parked on a tarmac with its engines running. A person is visible in the cockpit. In the background, there are wind turbines and buildings.
    The electric motors and propellers on NASA’s X-57 Mod II aircraft are spun for a test. NASA will modify this Tecnam P2006T aircraft to fly electrically in three configurations, the first being the Mod II version shown here. This strategy should lay the groundwork for certification standards for future electric aircraft.