The X-57 will feature 14 electric motors and be quieter than a typical plane. (NASA)

NASA is developing an electric plane to accelerate the introduction of zero-emission aircraft that use less energy and cruise at higher speeds than the aircraft of today. If successful, the plane could become a significant first step toward a new era of more efficient and environmentally friendly air travel.

The electric plane, which NASA is calling the X-57, will seat only a pilot. NASA is also planning five larger planes capable of carrying far more passengers and cargo.

The plane will include 14 motors that power propellers on an unusually thin wing. Typically such a narrow wing would be out of the question, because planes need the lift that a broad wing provides during takeoff and landing. But because NASA has a cluster of propellers lining the wing, more air will be blowing across the wing, providing extra lift.