The Hungarian Air Force flew 12 Fitter-Js that served between 1984 and 1997, although these did not use the usual Lyulka AL-21 engines, rather were manufactured with the Tumansky R-29BSZ-300 gas-turbine jet engine with afterburner. This example is on display at the very nice and friendly RepTár Szolnoki Repülőmúzeum.