The L-39 Albatros, a high-performance second-generation jet trainer, was developed by the Aero Vodochody aircraft company in Czechoslovakia during the 1960s. It is a two-seat, all-metal monoplane powered by an Ivchenko AI-25 turbofan engine. Becoming the most widely used jet trainer, until today about 2,800 L-39s have served with more than thirty air forces around the world.
The L-39ZA is an upgraded variant designed for armed training and light attacks, fitted with a GSh-23 cannon pod under the fuselage. The L-139 Albatros 2000 was a revised version equipped with western avionics and powered by a American Garrett TFE731-4-1T engine; despite its ample promotion at various international air shows worldwide, only a single prototype was built.