|The Dornier Do X was largest, heaviest, and most powerful flying boat in the world, it was produced by the Dornier company of Germany in 1929, it was called the Flugschiff (flying ship). Powered by twelve water-cooled engines, with a crew of 14 and designed to carry 66 passengers long distance or 100 on shorter flights.
"On the main deck was a smoking room with its own wet bar, a dining salon, and seating for the 66 passengers which could also be converted to sleeping berths for night flights. Aft of the passenger spaces was an all-electric galley, lavatories, and cargo hold. The cockpit, navigational office, engine control and radio rooms were on the upper deck. The lower deck held fuel tanks and nine watertight compartments, only seven of which were needed to provide full flotation."