The Antonov AN-30 is an upgraded Soviet-era plane used by the Romanian Air Force to fulfil the Open Skies Treaty.
That allows participating states to conduct unarmed reconnaissance flights over each other's territory.
The Cold War-era aircraft is perfect for the job as it was designed for aerial mapping and reconnaissance.
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Between 1971 and 1980, 123 Antonovs were built in Kyiv and the plane is still used by Bulgaria, Sudan, Ukraine, Russia and Romania.