La Hispano Aviacion SA manufactured the Fiat CR.32 biplane fighter as the HA-132-1 Chirri between 1938- 1942. In 1943 the company received a contract to build the Messerschmitt Bf 109G under license for the Spanish Air Force. Designated Hispano HA-1109, it was powered initially by a Hispano-Suiza HS-12Z engine and later, in HA-1109/1110 Buchon variants, by the Rolls-Royce Merlin. An indigenous HA-43D-1 advanced two-seat military trainer went into production for the Spanish Air Force in 1947, followed in 1953 by the HA-1 OOEI replacement, with tricycle landing gear, designed by Willy Messerschmitt. Messerschmitt also supervised design of the HA-200 Saeta jet trainer, which first flew in 1955 and which was later developed as the HA-220 Super Saeta single-seat light ground-attack aircraft.
Hispano merged with Construcciones Aeronauticas SA in 1972.