The world's largest aircraft has finally completed its first flight after months of preparation and years of searching for funding. The Airlander 10 as it's called spent 20 minutes in the air on Wednesday, landing safely at Cardington Airfield north of London. CNNMoney reports: "Part airship, part helicopter, part plane, the 300-foot long aircraft is about 50 feet longer than the world's biggest passenger planes. The Airlander, made by British company Hybrid Air Vehicles, has four engines and no internal structure. It maintains its shape thanks to the pressure of the 38,000 cubic meters of helium inside its hull, which is made from ultralight carbon fiber. The aircraft was originally designed for U.S. military surveillance. But the project was grounded in 2013 because of defense spending cuts. [The team behind the giant blimp-like aircraft] said the aircraft could carry communications equipment or other cargo, undertake search and rescue operations, or do military and commercial survey work. The Airlander can stay airborne for up to five days at a time if manned, and for more than two weeks if unmanned. It can carry up to 10 tons of cargo at a maximum speed of 91 miles per hour. The aircraft doesn't need a runway to take off, meaning it can operate from land, snow, ice, desert and even open water." You can view the historic flight for yourself here (Warning: headphone users beware of loud sound).