in a propeller, the high cockpit of the XX was replaced with a blunt-nosed cabin, curved in planform, for the pilot. Behind him the passenger seats in the Type 22 were in pairs, each with their own window. Boarding and disembarking were reported as a little difficult. The wing-mounted engines led to revised wing plans and structures. The Bréguet 22 had equal-span, unstaggered wings of rectangular plan and three bays. The innermost bay was defined by the engine by the engine mountings, which placed the U.16s with their four-blade tractor propellers on multiple struts midway between the two wings. Radiators were mounted on the sides of the engine cowling. The outer bays were formed by single interplane struts with forked junctions into the wings, assisted by cross-bracing. At the rear the tail was, like that of the Type 20, quite small and conventional with the tailplane mounted on top of the fuselage but now carrying a pair of small additional fins. The landing gear was also conventional, with each fixed mainwheel mounted on a pair of substantial V-form legs from the wing spars under the inner bay. The Bréguet-Bugatti engines soon proved unreliable and by early 1923 the Type 22 was described as powered by four Lorraine-Dietrich 8Bd water-cooled mounted in tractor/pusher pairs. The sole Type 22 was destroyed in a fire following a forced landing in mid-September 1923 whilst competing for the Grand Prix pour Avions de Transport. Variants 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. Specifications (Bréguet XXII 2x Bréguet-Bugatti U.16 engines) References 0022 1920s French civil aircraft Biplanes Four-engined push-pull aircraft Aircraft first flown in 1922