Lioré-et-Olivier was a French manufacturer of aircraft of the 20th century, founded in 1912 by Fernand Lioré and Henri Olivier. History The Société de Constructions Aéronautiques d'hydravions Lioré-et-Olivier had three factories, located in Argenteuil, Clichy, Hauts-de-Seine and Rochefort, Charente-Maritime. The company was nationalized in 1936, following which it was merged with Chantiers aéronavals Étienne Romano, Potez, CAMS and SPCA in order to form the Société nationale des constructions aéronautiques du Sud-Est (SNCASE) on 1 February 1937. The factory at Rochefort, however, went into SNCASO. Aircraft designs Lioré et Olivier LeO 1: Sopwith 1½ Strutter built under license. Lioré et Olivier LeO 3: fighter, 1917 (project). Lioré et Olivier LeO 4: reconnaissance aircraft, 1917 (project). Lioré et Olivier LeO 5: Lioré et Olivier LeO 6: Lioré et Olivier LeO 7: Bomber escort biplane, developed from the LeO 5, 1922. Lioré et Olivier LeO 7/2: Production version for the French Air Force. Lioré et Olivier LeO 7/3: Production version for the French Naval Aviation. Lioré et Olivier LeO 8: Two-seat reconnaissance aircraft and night fighter, 1923. Lioré et Olivier LeO 9: Liore et Olivier H.10: Prototype two-seat reconnaissance floatplane, 1923. Lioré et Olivier LeO 12: Night bomber prototype, 1924. Lioré et Olivier LeO 121: One LeO 12 converted into a 12-seat airliner. Lioré et Olivier LeO 122: Improved night bomber prototype, converted from an LeO 12. Lioré et Olivier LeO 123: One LeO 12 converted into a testbed with enclosed cockpits. Lioré et Olivier H.13: Biplane flying boat, 1922. Lioré et Olivier H.132: Powered by two Hispano-Suiza 8Aa engines. Lioré et Olivier H.133: Powered by two Renault 12F engines. Lioré et Olivier H.134: Powered by one Lorraine 12Eb engine. Lioré et Olivier H.135: Powered by two Hispano-Suiza 8Ab engines. Lioré et Olivier H.136: Version for Aeronavale. Lioré et Olivier H.14: Proposed 5-seat version of the H.13. Liore et Olivier H.15: Liore et Olivier H.18: Liore et Olivier H.19: Lioré et Olivier LeO 20: Night bomber aircraft, developed from the LeO 122, 1927. Lioré et Olivier LeO 201: Designation for parachute trainers converted from LeO 20. Lioré et Olivier LeO 203: Four-engine version of LeO 20. Lioré et Olivier LeO H.20/4: Floatplane version of LeO 203. Lioré et Olivier LeO 206: Production version of LeO 203. Lioré et Olivier LeO 207: Lioré et Olivier LeO 208: as LeO 20 but with an enclosed cockpit and different engines. Lioré et Olivier LeO 21: Biplane