Russian Helicopters demonstrated yet another version of the long-serving Mi-8/17 family, the Mi-171E2, which has been flying since February. It is powered by Russian-made Klimov VK-2500 turboshafts instead of Ukrainian-built Motor-Sich TV3-117s. But the company’s plan to replace Ukrainian engines on new-production Mi-26 heavy-lift helicopters has been delayed.
Ukraine has banned the export of engines for helicopters destined for Russian military or government operators. But it does allow Motor-Sich engines to be installed in Russian helicopters that are exported.
The new Mi-171E2 has a military-grade glass cockpit, which is armor-plated, and provision for weapons. It has fully composite blades of improved aerodynamic form with scimitar-shaped tips and an X-like anti-torque tail rotor. The VK-2500PS-03 engines—which were first fitted on the civilian Mi-171A2 version that has just entered service—have Fadec controls.
The new propulsion system gives the Mi-171E2 extended capability in high ambient temperatures, said Andrei Boginsky, general manager at Russian Helicopters. “Taking account of this, I am confident that the new machine will find numerous applications in hot and high conditions,” he said. The company said that both India and Kazakhstan had placed orders. Read More