The TV3-117 shown here is the first production-standard representative of the long-lasting family powering the legacy Mi-24 versions, with mass production launched in the early 1970s

The MI-28NE attack helicopter uses the VK-2500-02 engine with further improved performance and reliability for export customers

Rated at 2,700shp in the OEI mode, the VK-2500-02 turboshaft is used to power the Mi-28N/NE/UB attack helicopter family

The Mi-28NM attack helicopter with beefed-up flight performance, currently in production for the Russian Army Aviation, is powered by enhanced VK-2500PS-01 turboshafts boasting a comprehensive FADEC and the newly-added surge protection mode

The Mi-171E, built for military export customers, comes powered by a pair of TV3-117VMA engine deemed as still being well-suited to provide good power margins in hot-and-high operating condition

These TV3-117VMAR engines are shown ready for installation on a Ka-31 helicopter built at the KumAPE plant in Kumertau, Russia, and later exported to China in 2011

The Ka-31 airborne radar surveillance and over-the-horizon targeting shipborne helicopter comes powered by the TV3-117VMAR engine with OEI rating of 2,400shp, while the take-off rating is set at 2,200shp

The Ka-52 Alligator attack helicopter is powered by the VK-2500-01 sub-version, which has a take-off rating of 2,000shp along with an OEI rating of 2,700shp

The Mi-8AMTSh-VA is a Hip derivative on steroids that comes powered by the VK-2500-03 turboshaft designed for use in Arctic conditions

All of the helicopters ordered by the Russian MoD are now receiving engines manufactured at Klimov in St Petersburg. In turn, some of the export derivatives still use Motor Sich-supplied VK-2500 ad TV3-117VM/VMA turboshafts. This is a Russian VKS Mi-8AMTSh-V assault transport helicopter powered by the VK-2500-03 to endow it with a vastly improved hot-and-high performance, with first deliveries reported in 2015

Currently only a small proportion of the Mi-171Shs and Mi-17V-5s built for export customers are powered by enhanced VK-2500-02 engines, with the majority of the newly-built Hip derivatives still sporting the more affordable TV3-117VMA

The VK-2500-02 sub-version has been tested on the Hind family since 2001. The first installation on a production-standard Mi-35M took place in 2006, on helicopters ordered by Venezuela

A pair of VK-2500-02s are shown next to a Mi-35M attack helicopter at the Rosvertol plant. This turboshaft is a derivative of the proven TV3-117 family with an increased OEI rating of 2,700shp and FADEC controls.

The Mi-35M is one of the three attack helicopters currently being produced in Russia and all of them are powered by VK-2500 turboshafts. In particular, the Mi-35M uses the VK-2500-02 sub-version with a take-off rating of 2,200shp and a cruise rating of 1,500shp

Since mid-2014, the deliveries of Motor Sich-assembled VK-2500 and TV3-117VMA engines to Russia have been subject to strict supervision by the Ukrainian defence export control authorities. Currently, these engines are allowed for delivery to be installed on newly-made helicopters, such as the Mi-35M, for export customers only