The Quiz: What kind of flying machine is this?
C Solar-powered plane
Solar Impulse 2 is the first solar-powered airplane to fly around the world without using a single drop of fuel. The plane was designed by André Borschberg and Bertrand Piccard, who took turns piloting the aircraft on its multi-leg, 16-month, 26,000-mile circumnavigation in 2015 and 2016. The plane weighs about the same as a car and flies at an average speed of 50 miles per hour.
The correct answer to this quiz is Solar-powered plane.