The three-meter-long drone, named Mobin, weighs 670kg and is capable of to carrying equipment and arms of up to 120kg.
The radar-evading UAV can fly at an altitude of 45,000ft for 45 minutes at a speed of 900km/h.
The domestically-manufactured drone has a low radar cross section (RCS).
MAKS 2019 opened on Tuesday in Zhukovsky with speeches by Russian President Vladimir Putin and his visiting Turkish counterpart, Recep Tayyip Erdogan.
More than 600 Russian companies and over 180 foreign firms, including those from Iran, are showcasing their latest aerospace and aerial achievements at the exhibition, which will last until September 1.
Iran among world’s top five drone powers: IRIAFA senior Iranian commander says the country is among the world’s top five powers capable of building combat drones.
In February, the commander of the Islamic Republic of Iran Air Force (IRIAF), Brigadier General Aziz Nasirzadeh, said Iran is among the world’s top five drone powers.
The Iranian Armed Forces, he added, can manufacture any drones they require through reliance on the skills of domestic experts.
Iran in January unveiled its first wide-body unmanned aerial vehicle, dubbed Khodkar (Automatic), which is fully designed and manufactured at home.