The VK-2500 series is an upgrade of the TV3-117VMA.
VK-2500-I - 1500/2000 shp
VK-2500-II - 1500/2200 shp
VK-2500-III - 1750/2400 shp
Russian Helicopters at SPIEF 2019, 11-Jun-19 : #SPIEF Russian Helicopters gain financial support from Novikombank at the XXIII St Petersburg International Economic Forum, SPIEF 2019, for continuing development of PD-14 and VK-2500 engines and civilian helicopters
Russian Helicopter Engines Repair Center in Vietnam, 29-Apr-19 : Russian United Engine Corporation (UEC) Klimov opened an helicopter engines repair center in Vũng Tàu, Vietnam for medium repairs of TV3-117 and VK-2500 engines operated by the country’ Mi-17
Mi-171 with VK-2500-03 Engine Certified in China, 07-Apr-19 : #VK2500 Chinese Civil Aviation Administration (CAAC) granted certification to the Mi-171 with Klimov VK-2500-03 engines. Special suited for cargo and firefighting demonstrated taking 3.5 tons bambi bucket at an altitude of 3,000 meters ~ 9,800 feet
Mi-171A2 First Prototype Maiden Flight, 25-Nov-14 : The first prototype of the Mi-171A2 helicopter launched flight tests using the KBO-17 avionics suite and the new VK-2500PS-03 engines at the Mil Moscow Helicopter Plant