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PD-35 powerplant

The PD-35 powerplant was being developed, which began in the summer of 2016, at two plants at once - the Perm Aviadvigatel and the Rybinsk Saturn (both are part of the JDC). The thrust was up to 35 tons, more than two times higher than that of PD-14. But according to the design scheme, this is actually its scaling. The project cost was estimated at 180 billion rubles. The engine is designed for wide-bodied aircraft. According to experts and the experience of previous projects, the beginning of its mass production can be expected at best in 2027. There are no other data yet, therefore, for example, it is difficult to estimate its profitability, and foreign competitors will go far ahead by this time.

Russia’s United Engine Corporation (UEC) is gearing up for developing high-thrust turbofan engines for future commercial airliners. In particular, the Perm-based Aviadvigatel enterprise (an UEC subsidiary) is looking into the possibility of upscaling the core of the new PD-14 engine, UEC deputy chief designer Victor Belousov told the Aircraft Engines Of The 21st Century conference held in November 2015 at the Central Institute for Aviation Motors (TsIAM).

Representatives of Rostezh designated the current parameters of the project for the development of the domestic engine PD-35 with a thrust from 33 to 40 tons. Officially, the process started in 2016, and the creation of a record-breaking powerplant for Russian aircraft industry was set aside for 6 years and a total of about 180 billion rubles was allocated.

The PD-14, with its 14-ton nominal thrust, was developed for Russia’s Irkut MS-21 next-generation narrowbody aircraft. The engine commenced flight tests on an Ilyushin I-76LL flying testbed in late October 2015. PD-14 is the basic turbofan engine, which is being created in the wide cooperation of the enterprises of the UDC for the MS-21 airliner using the latest technologies and materials, including composite ones.

PD-35 is supposed to be installed on a new generation of long-haul passenger and heavy military transport aircraft. It will be much more powerful than the existing Soviet D-18T engines for the largest AN-124 / AN-225 USSR aircraft and will surpass foreign analogues - the engines of the giant Airbus A380. For that new powerplant, the core of the PD-14 will received an additional stage at the discharge of the high-pressure compressor. As a result, the total number of stages at the PD-35 compressor and turbine will be 9+2, and the high-pressure compressor intake diameter will be 815 mm, as compared to the PD-14’s 582 mm. The engine’s fan diameter will reportedly be 3,100 mm; the engine will be over 8 m long, and will weigh around 8 tons.

At least two more powerplants will be developed from the PD-35: the 28-ton PD-28 and the 24-ton PD-24. The larger two of the engine family will be offered for next-generation two- and four-engine widebodies, whereas the smallest one will be mounted on short-haul widebody airliners and a heavy military transport.

To create the PD-35 is now unfolding the necessary research base, soon there will be new test benches. The engine is being developed in the cooperation of Russian plants in Rybinsk and Perm, taking into account the requirements of technological independence from foreign countries. Taking into account the announced deadlines for the project, the developers plan that the power unit will be ready for production in 2022.

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Page last modified: 10-12-2018 18:49:21 ZULU