page_title: Bréguet 20 Leviathan
section_title: Variants
hierarchical_section_title: Bréguet 20 Leviathan / Variants
caption_attribution_description: English: The Bugatti U-16 aircraft engine.
context_page_description: The Bréguet Leviathan was a family of large all-metal biplane aircraft built in France in the early 1920s. The Bréguet XX and XXI were notable for being powered by Bréguet-Bugatti multiple engines, in two forms. The Bréguet XXI was powered by individual Bréguet-Bugatti U.16 engines initially and Lorraine-Dietrich 8b engines in tandem later. The Bréguet XXII had accommodation for about twenty passengers and was destroyed during a 1923 transport aircraft competition. Development of all three aircraft types was halted largely due to technical issues with power-plants and aircraft structure.
context_section_description: Bréguet XX Leviathan
  (Bréguet 20 Leviathan) A large all-Duralumin biplane airliner powered by  a Bréguet-Bugatti 32A Quadimoteur Type A multi-engine, mounted inside the forward fuselage.
  Bréguet XXI Leviathan
  (Bréguet 21 Leviathan) A bomber version of the Bréguet XX / XXII, powered initially by a Quadimoteur Type A multi-engine, but later fitted with a Bréguet-Bugatti 32B Quadimoteur Type B multi-engine, both mounted inside the forward fuselage.
  Bréguet XXII Leviathan
  (Bréguet 22 Leviathan) A development of the Bréguet XX powered initially by two individual Bréguet-Bugatti U.16 engines mounted conventionally between the wings and later by four Lorraine-Dietrich 8B V-8 engines mounted in tandem between the wings.
caption: A King-Bugatti, almost identical to the Bréguet-Bugatti U.16, clearly showing the individual 8-cylinder banks
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