The Sukhoi Su-17 (NATO reporting name: Fitter) is a Soviet attack aircraft developed from the Sukhoi Su-7 fighter-bomber. It enjoyed a long career in Soviet, later Russian, service and was widely exported to communist and Middle Eastern air forces, under names Su-20 and Su-22. The production aircraft was named Su-17 (NATO designation 'Fitter-C', factory designation S-32) and was unofficially dubbed Strizh (Стриж, martlet) in service. Aside from the new wing, it differed from its predecessor Su-7 in having a new canopy and a dorsal fuselage spine for additional fuel and avionics. Su-17 first flew on 1 July 1969 with E. K. Kukushev at the controls. A total of 2,867 Su-17 and its variants were built, of which 1,165 were exported to 15 nations.