Russian Helicopters Holding Company and United Engine Corporation (UEC) (both part of Oboronprom Corporation and Rostec State Corporation), announced the successful start of flight testing of the third Mi-38 prototype powered by Russian-produced TV7-117V engines. The new engines have been developed by Klimov (part of UEC) especially for the new transport and passenger helicopter, the holding’s press-service reports.
The third Mi-38 prototype performed its maiden flight on November 29th 2013. In the network of the test program the helicopter flew around the territory of the flight test center of Mil Moscow Helicopter Plant (part of Russian Helicopters) located at the National Helicopter Development Centre in Tomilino (Moscow Region). The Mi-38 powered by Russian-produced TV7-117V engines performed its maiden flight on November 13th 2013 when it completed testing in hover mode. The positive test results pave the way for start of certification testing in accordance with Russian AP-29 standards, the press-service noted.
“The first flight of Mi-38 helicopter is the successful result of cooperation between Russian helicopter and engine designers. Mi-38 is a next-generation helicopter meeting the highest standards in the area of flight safety and comfort. Thanks to TV7-117V engines, the range of potential applications of Mi-38 has been expanded. This fact makes this vehicle even more attractive to our existing and new customers”, - said Alexander Mikheev, CEO of Russian Helicopters.
“The development of TV7-117V engines is one of top-priority projects of United Engine Corporation. The new engines deliver increased power and fuel efficiency. The production of a test batch of the TV7-117Vs intended for certification testing will be started soon. The certification is scheduled for late 2014”, - said Vladislav Masalov, CEO of UEC.
The new turboshaft TV7-117V engine derived from certified TV7-117 turboprop engine generates thrust of 2,500-3,000 hp. The degree of commonality between the engines is over 90%. The TV7-117V grants high level of flight safety thanks to its ability to generate emergency power of 2,800-3,750 hp. The engine features a new FADEC system based on an electronic engine control unit.
The possibility for using TV7-117V engines on the pre-production Mi-38 is the result of successful work by the employees of experimental design bureau; in particular, this refers to development of a connecting unit between the main rotor gearbox and the engine, optimization of the cooling system for the engine and main gearbox, and improvement of the automatic engine control system.
Certification of Mi-38 should be completed in 2015. The serial production will be launched in 2015 at Kazan Helicopter Plant (part of Russian Helicopters Holding Company), where the fourth Mi-38 prototype (the final one) is being assembled. The fourth prototype will be fitted with a shock-resistant fuel system by Aerazur and it will have an enlarged cabin windows. Serial Mi-38s will be powered by Klimov TV7-117V engines, the company noted.