[4] Since the double engines could continue to run with one half shut down;[4] the Bréguet XX and XXI and XXII were sometimes referred to as four-engined aircraft (e.g.L'Aerophile[7]).

Since the nose of the XXII did not terminate in a propeller, the high cockpit of the XX was replaced with a blunt-nosed cabin, curved in planform, for the pilot.

[4] The Bréguet-Bugatti engines soon proved unreliable and by early 1923 the Type 22 was described as powered by four 270 hp (200 kW) Lorraine-Dietrich 8Bd water-cooled mounted in tractor/pusher pairs.

[9][10] 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.

[11] Data from L'Aérophile 1 January 1923:Les Avions du VIII Salon de l'L'Aéronautique,[12] Flight 28 December 1922:Louis Bréguet - Paris,[4] L'Aérophile 15 December 1922:Les Avions Stand par Stand - Bréguet "Leviathan" XXII,[7] Jane's all the World's Aircraft 1924[13]General characteristics Performance