London (CNN) – The world's largest aircraft has retired after six test flights, as the developers are preparing to build a new commercial model to go to heaven in the early 2020s.
The Prototype Airlander 10, a hybrid helium airship built by Hybrid Air Vehicles based in Bedfordshire in central England, measures 300 feet in length – and has been called the "flying bum" because of its unfortunate shape.
Hybrid Air Vehicles will now begin to work on the production version of the prototype, which has been approved by the United Kingdom Aviation Authority (CAA).
Luxury Airlander has a 150 foot cabin with plush ensuite bedrooms, a built-in "height" bar and glass floors.
"Passengers can enjoy cocktails wh ile enjoying the horizon on the horizon and living in comfort in double en-suite cabins while flying over and landing at incredible, remote and uncertain places," says a spokeswoman.
It can reach heights of up to 6,100 meters (16,000 feet) and will host three-day expeditions for a maximum of 19 passengers.
Airlander 10, a spectacularly large helium pumped airplane, is fully revealed for the first time in a fugitive hangar near London.
The company also says that its production model will "reconsider the sky" and aim for the aircraft to be low carbon. The new model will be the same size as the prototype, although exact dimensions have yet to be confirmed.
Hybrid Air Vehicles celebrated the CAA Production Organization Approval Award (POA), which allows the production and assembly of production to continue as a "significant milestone."
"POA is the regulator's approval stamp for us to move forward with the production of Airlander 10 on the road to type certification. This puts us in a good position entering 2019," said company CEO Nick Allman in a statement.