The most important fighter type of the first weeks of the Spanish Civil War was the obsolete Hispano-Nieuport 52, forming in the summer of 1936 the standard armament Aviación Militar. It was used intensively mainly by the Republican Air Force, a smaller number were also gained by the insurgents after the coup. The first air victories of the tragic civil conflict were won by the pilots of both opposing parties in the cabins of these fighters.
The number of bearing surfaces was varied in the early days of aviation. Here is a small look at the French answer to Sopwith Triplane and Fokker Dreiedecker.