The Aero L-39 "Albatro" might be one of the most popular advance trainer/light ground attack aircraft of the world,more than 2800 L-39s have served with over 30 air forces around the world for more than 40 years.The: Albatro took the first flight on 4 November,1969.

The L-39ZA/ZO/M are all based on the L-39C.the type M is the upgraded version of the L-39C which put out by Ukrainian,the aircraft change the engine to the Al-25TLSh.The L-39ZO is the developed version of the L-39C for the weapon training missions,they have one pair more pylon under the wing.The L-39ZA is the trainer/light ground attack aircraft of the Albator,employing sturdier landing gear, a higher payload (total 1,290 kg) and notably provision for aGSh-23L23mm twin barreled cannon attached in a conformal pod under the pilots' compartment, having a 150 round within the airframe.