An aircraft as long as a football pitch and as tall as six double decker buses has left its hangar in Bedfordshire, England, in preparation for its first flight. The Airlander 10 aircraft, dubbed ‘The Flying Bum’, is essentially three streamlined airship-type bodies merged into one with wings and rotary engines. Capable of flying for up to five days without refueling, the Airlander 10 was originally developed by the U.S. military as a surveillance craft. Defense budget cuts meant to government decided to sell it. Its new owners, Hybrid Air Vehicles, has converted it for commercial use, allowing it to take passengers and cargo.