SUPER ZEPPELIN: The Airlander 10 is 302 feet long and undergoing flight tests.

Though it looks like a massive blimp, the Airlander 10 combines technology from airplanes, helicopters, and airships. It is designed to stay aloft at altitudes of up to 20,000 feet (6,100 meters) for up to five days when manned…

According to the chief test pilot, it flies “superbly.”