Joint Stock Company Russian Helicopters, a subsidiary of UIC Oboronprom, controls all Russian helicopter industry enterprises. Mil Moscow Helicopter Plant, Kamov, and Kazan Helicopters conduct R&D. Serial production plants were integrated into the Russian Helicopters group: Kazan Helicopters manufactures the medium Mi-8/17 and the light Ansat, and is starting production of the Mi-38. Ulan-Ude Aviation Plant manufactures the Mi-8/171. Rostvertol manufactures the heavy lift helicopter Mi-26T, the transport-combat helicopter Mi-24/35, and the attack helicopter Mi-28N. Kumertau Aviation Production Enterprise produces the Ka-27/Ka-32 and the light Ka-226T. Arsenyev Aviation Company Progress manufactures the military attack helicopter Ka-52 and the light Mi-34S1. Russian Helicopters company is also engaged in the management of production and aftersale support enterprises for major components and systems: Stupino Machine Production Plant, Reductor-PM, Helicopter Service Company (VSK) and Novosibirsk Aircraft Repairing Plant. Partners of Russian Helicopters: AirTaxi Service (interior completions); R.E.T. Kronshtadt (aviation training systems, navigation and avionics); Tranzas (software, navigation systems, aviation simulators); CSTS Dinamika (full scope of technical training means for aviation personnel); BETA AIR (testing equipment); Ural Works of Civil Aviation (repair of helicopter engines and components and reductors).