Powered by a 330 hp Hispano-Suiza 8Se liquid-cooled engine and carrying an armament of two 0.303 in (7.7 mm) Vickers machine guns, the LB 2 was of wooden construction and was intended to operate from the carrier Béarn. The LB 2 was flown for the first time in 1927, and, in October of that year, with a twin-float landing gear from Saint-Raphaël.
With the failure of the J. Levy company, the rights in the LB 2 design were transferred to the Etablissements P. Levasseur, which manufactured a series of 20 aircraft, designated LB 2 AMC1, during 1928-1929. These saw limited service aboard the Béarn and from shore bases."