A view shows a Mi-26T2V helicopter at Rostvertol aviation plant in Rostov-on-Don
A view shows an upgraded heavy Mi-26T2V helicopter at Rostvertol aviation plant, owned by Russian Helicopters company, part of Rostec State Corporation, during a demonstration tour in Rostov-on-Don, Russia April 4, 2019. Picture taken April 4, 2019. REUTERS/Sergey Pivovarov