Though only three were produced in late-1920s/early-1930s Germany, the Dornier Do X was the largest flying boat of its time and flew passengers on international flights in extreme comfort during the pre-World War II years. Powered by twelve engines, the aircraft could accommodate over 100 passengers and crew and included sleeping and dining areas. This detailed and highly illustrated book covers the design, development and construction of the Do X, then explores its initial testing and short but historic use as an international airliner, and lastly discusses the ultimate fate of all three examples. The superb collection of photographs includes rare images of the Do X's construction, flights, crew, and luxurious fittings – including many of its interior features, furniture, vintage ephemera and place settings.