The 100th flight of the MS-21 airliner with a domestically produced PD-14 engine under the wing was successful, the certification program is going according to plan,” Vladimir Artyakov, First Deputy General Director of Rostec, is quoted in the message.
Tests of the MS-21-310 medium-haul airliner are carried out to obtain the Main change in the type design of the aircraft – “Replacement of P&W1400 engines by PD-14 engines on the MS-21 aircraft”. The test program is designed for 240 flights.
The press service clarified that the PD-14 engine is being tested in conjunction with the aircraft’s systems: the hydraulic system, the electrical system and the integrated air conditioning system. The joint operation of the “aircraft-engine” in various modes is checked. The situations of turning off one of the engines in flight, landing with one engine, engine failure during takeoff (“extended takeoff”), climb gradients during takeoff and descent from different heights with one engine running are worked out. All test programs are related to the confirmation of the flight characteristics of an aircraft with PD-14 engines.
As expected, in the near future, another MC-21-310 aircraft with tail number 73051 will join the flight test program. In total, the United Engine Corporation of Rostec State Corporation supplied the Irkut Corporation with a set of five PD-14 engines for flight tests.