The S-92 is a multi-role fighter built by the Czechoslovak company Avia. During World War II, the Germans built assembly plants in Czechoslovakia for the production of the Messerschmitt Me.262. After the war, the production infrastructure remained intact, so that production could be resumed very quickly. The first S.92.1 was built at the Letnany Research Institute.
The first production S-92 was delivered to the Czech Air Force on June 12, 1948. A total of nine S-92s and three CS-92s were produced. All of them were in service with the 5th Fighter Regiment. In 1951, the aircraft were transferred to training units.