The PD-14, which is offered as an alternative to the base engine for the aircraft, the Pratt & Whtiney PW1400G, was analysed in our Part 3 article. We now mount the engine on the MC-21 and explore the difference in performance compared to the base engine.
The PD-14, which is a new engine designed by the Aviadvigatel company, is a clear step forward for the Russian turbofan industry.
In our analysis in Part 3, we could see that it has a classical direct drive construction with a good level of technology in several parts.
Weight and installation dimension are similar to the competition but efficiency is a bit behind.
We now explore the performance of the MC-21 with the Russian engine.