Aviadvigatel advances tests of PD-14 engine for MS-21

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Russian aero engine designer Aviadvigatel has started testing a technology demonstrator of its PD-14 powerplant for the Irkut MS-21 twinjet.

The first series of bench tests will cover system integration, function and reliability trials, says a company spokesman.

He adds that seven domestic enterprises have supplied key components for the test engine, with the largest input from Perm Motors, which delivered a high pressure turbine, a compressor stator and a combustor.

The PD-14 conceptual design envisages developing three engine models with a range of between 27,600-34,400lb thrust (123-153kN) to power the three-aircraft range which is centred on the -300.

But the spokesman does not rule out the development of an enhanced model - dubbed the PD-18P - to equip the Tupolev Tu-214 and Ilyushin Il-96-300 passenger aircraft as well as the Il-96-400T freighter.

Aviadvigatel director general Alexander Inozemtsev says the project participants have come up with a suite of innovations and cutting-edge technologies.

"In particular, Perm Motors has invested €15 million [$18.8 million] in building a special facility to apply ceramic coating to parts in the engine hot section," he says.

"Likewise, [Ufa-based engine manufacturer] UMPO now has an in-house capability to produce hollow titanium fan blades.

"To further reduce the weight of the engine, we've also used some new alloy technology and want to invite international tenders for the supply of composite nacelles."