On December 15th the MC-21-310 aircraft equipped with new Russian-made PD-14 engines made its maiden flight on the airfield of the Irkutsk Aviation Plant – the subsidiary of the JSC Irkut Corporation. The duration of the flight was 1 hour and 25 minutes.
Specialists of the All-Russian Scientific Research Institute of Aviation Materials (VIAM) developed 20 new materials and improved more than 50 brands of materials for the PD-14 engine.
For instance, in the structure of the engine there were used highly heat-resistant single-crystal nickel-based rhenium-ruthenium alloys for rotating and nozzle blades; high-strength structure steels and wrought nickel and titanium alloys of new generation for the shafts, disks and frames; promising polymer composite materials of new generation, etc.
For the first time in domestic engineering and technological practice, a PD-14 engine nacelle was designed and manufactured from domestic polymer composite materials, which ensured a reduction in the structure weight while maintaining the required stress-strain properties.
In addition, a "combat" part of the PD-14 engine - a swirler of a flame tube head was manufactured by additive technologies from a domestic metal-powder composition at VIAM; this part fully meets the requirements of design documentation.