Russia’s United Engine Corp. (UEC), a part of state-owned Rostec Corp., has completed the second stage of flight tests for the PD-14 engine that will power the Irkut MC-21. “The major aim of the trials was to confirm the working efficiency of the engine within different altitude and speed conditions, in which it will be operated on MC-21 airliner, and to assess the level of its operational performance,” Rostec said in a May 25 statement. The PD-14 flight tests were ...

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