The Avia S-199 was a propeller-driven fighter aircraft built after World War II by the two aircraft factories in Czechoslovakia: one of them officially called závod Avia (Avia Plant) (1946–48) and závod Avia-Jiřího Dimitrova (Avia-George Dimitroff-Plant) (1948–49) in Čakovice near Prague, as a post-war corporative part of the Automobilové závody, n.p. (Automotive Works, National Corp.), and the other one called závod Vysočany (Vysočany Plant) (1948–49) in Prague, as a corporative part of Letecké závody, n.p. (Aviation Works, National Corp.). It was constructed with parts and plans left over from Luftwaffe aircraft production that had taken place under the country's German occupation during the war. Despite the aircraft's numerous problems and unpopularity with its pilots, it achieved fame