Czechoslovak Letov Š-231 fighter biplanes left a relatively significant mark in Spain's civil war. Machines of this type served in the Iberian Peninsula in the ranks of the government air force from spring 1937 to February 1939. Even with the Republican defeat " Spanish " history of the Š-231 flights did not end, as three captured machines continued to fly in the Frankish Air Force after the Civil War.
History of aircraft production in Letov in the years 1918 to 1939. Combined with an overview of all manufactured and designed aircraft along with TTD.