Employees work at Rostvertol aviation plant manufacturing upgraded heavy Mi-26T2V helicopters in Rostov-on-Don...
Employees work at Rostvertol aviation plant, owned by Russian Helicopters company, part of Rostec State Corporation, which manufactures commercial and military aircraft including upgraded heavy Mi-26T2V helicopters, during a demonstration tour in Rostov-on-Don, Russia April 4, 2019. Picture taken April 4, 2019. REUTERS/Sergey Pivovarov