Leeham News and Analysis
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Leeham News and Analysis
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IRKUT MC-21 analysis, Part 4. Performance with PD-14
By Bjorn Fehrm
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Introduction
March. 14, 2016, ©. Leeham Co: In three articles we have been looking at the new Russian single aisle aircraft, Irkut MC-21, from United Aircraft and the new Russian engine that is being developed for the aircraft, the PD-14.
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.
Summary:
- 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.
IRKUT MC-21 analysis, Part 3. The Russian engine alternative
By Bjorn Fehrm
Subscription required.
Introduction
Feb. 29, 2016, ©. Leeham Co: In two articles we have been looking at the new Russian single-aisle aircraft, Irkut MC-21from United Aircraft. Now it’s time to analyze the new Russian engine, PD-14, which is offered as an alternative to the base engine for the aircraft, the Pratt & Whitney PW1400G. 
Summary:
- The PD-14 is a new engine designed by the Aviadvigatel company, a merger of the Soloviev design bureau with the Perm engine company.
- PD-14 is a modern 31klbf design aimed at several Russian aircraft, the first being the MC-21.
- The technology and performance of the PD-14 engine are approaching its Western counterparts, Pratt & Whitney PW1400G and LEAP-1A, but not quite reaching their level. We go through where it differs. Read more