Leeham News and Analysis
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Leeham News and Analysis
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IRKUT MC-21 analysis, Part 3. The Russian engine alternative
By Bjorn Fehrm
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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
IRKUT MC-21 analysis, Part 2
By Bjorn Fehrm
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Introduction
Feb. 24, 2016, ©. Leeham Co: Two weeks ago we started our analysis of the new Russian single aisle aircraft, United Aircraft’s Irkut MC-21. We looked at key design features and compared these to the Airbus A320.
We also analyzed the passenger capacity where we found that the model which will start flight testing, the MC-21-300, has a capacity between the A320 and the A321. The closest aircraft in capacity and performance in the MC-21 lineup versus the competition would be the MC-21-200 and A320neo.
We have therefore decided to do our efficiency analysis between these variants.
Summary:
- The MC-21 has a wider fuselage than the A320. This is a positive as it allows passengers to pass each other in the aisle of the cabin.
- The drawback of the wider fuselage is a bit higher aircraft drag.
- Coupled with a lower wing aspect ratio, the lighter MC-21 cannot open a fuel consumption advantage over the A320neo, despite being a more modern design.
Irkut MC-21, first analysis
By Bjorn Fehrm
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Introduction
Feb. 08, 2016, © Leeham Co: We recently covered China’s COMAC C919 and now the time has come to the other new narrow body aircraft from the old Communist bloc, the Russian MC-21.
The aircraft is called Irkut MC-21. Not many have heard of Irkut, so the first reaction is that this aircraft is made by a new Russian aircraft firm. The change is that United Aircraft (the Russian aircraft industry holding company) this time called the aircraft after its manufacturing company and not the design bureau, Yakovlev, that Irkut acquired in 2004. There are discussions to change back to the project’s original name Yakovlev 242 once certification is done.
When we looked at the first civil airliner that the Russian federation designed after the fall of Soviet Union, the Sukhoi Superjet 100, we found a well designed aircraft equipped with Western system. The MC-21 follows the same lines, but has more Russian technological development. It is therefore well worth a look.
Summary:
- The MC-21 has its own profile. It is not a copy of a Western aircraft. It has a wider cabin than the A320, a wing which allows a higher cruise speed and a higher capacity in its base variant, the MC-21-300.
- To make a meaningful comparison between the MC-21 and established aircraft, we have chosen to compare the MC-21-200 with the Airbus A320neo, as the MC-21-300 is larger than the A320neo but smaller than an A321neo. The MC-21-200 is closer in size to an A320neo. Read more
Bjorn’s Corner: Exciting 2016
By Bjorn Fehrm
29 January 2016, ©. Leeham Co: In the corner of two weeks ago we did a retrospective of 2015. Time for looking ahead. The year of 2016 will be quite interesting. We had entry into service of the first re-engine single aisle aircraft this week, the Airbus A320neo, the same week as we expect first flight from its main competitor, Boeing’s 737 MAX 8. We will also see first flight of the Embraer E190E2 and A350-1000 before the year is over.
The Mitsubishi MRJ shall go test flying in earnest and Bombardier’s CSeries 100 and 300 shall enter service. On top of that, the COMAC 919 will probably start ground roll tests this year and we should see roll out of Irkut’s MC-21. I would say 2016 is a busy year for civil aviation.
In the 2015 corner we talked a lot about engine technology as a key driver to further efficiency of air transportation. Now will dissect the airframe technology that all these new projects will bring us. Read more
Analysis: Sukhoi’s regional jet SSJ100, Part 2
By Bjorn Fehrm
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Introduction
21 January 2016, ©. Leeham Co: The first part of our analysis, published Monday, looked at Russia’s first effort to design and aircraft to penetrate the Western airplane market, Sukhoi Superjet (SSJ100). We concluded that the SSJ100 regional airliner was a good effort.
The aircraft was essentially a Russian airframe with Franco-Russian engines, Western systems and Western avionics. For aircraft that are delivered to Western airlines, it also has an Italian-designed/produced interior.
The aircraft has been in successful deployment with Interjet of Mexico and has now been ordered by CityJet of Dublin. After having looked at base characteristics of the aircraft/engine and also analysed the fuel consumption, we now continue with developing the Cash and Direct Operating Costs of the SSJ100. We compare it with the market leader in the 100 seats regional market, Embraer’s E190.
Summary:
- The SSJ100 is competitive on fuel costs compared to the E190.
- Maintenance costs for SSJ100 is still hard to predict as there is still too limited operational experience.
- Capital costs are lower for the SSJ100. This means that Direct Operating Costs, DOC, are attractive for the SSJ100.
Analysis: Sukhoi’s regional jet Superjet 100
By Bjorn Fehrm
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Introduction
18 January 2016, © Leeham Co: Russian aircraft have never succeeded in penetrating the Western market. But then they never really tried, until now. They were designed for the Soviet Union captive market, including the partner states that historically participated in or were friendly to the communistic system. One comes to think of China, Egypt, Libya, Cuba and Nicaragua.
The Sukhoi Civil Aircraft Company (SCAC) Superjet 100 (SSJ100) is the first Russian aircraft specifically designed from the outset to compete on a world market.
We analyse its basic design and performance in comparison to the market leader in 100 seat regional flying, Embraer’s E190.
Summary:
- The SSJ100 is a half a generation younger design than the Embraer E190. It has modern aerodynamics, IMA-based modular avionics and an advanced Fly-By-Wire system.
- The feedback-based Fly-By-Wire enables a tight aircraft design with low wetted areas.
- The SSJ100 engines, SaM146, can best be described as a shrinked and cleaned up CFM56. They have the efficiency level of the E190’s CF34-10E.
- The aerodynamics and engines combine to give the SSJ100 a single digit edge in fuel burn over the E190.
Bjorn’s Corner: What did we learn in 2015?
By Bjorn Fehrm
08 January 2016, ©. Leeham Co: It’s the first Corner for the year and a look at 2015 as a year of technology advancements is due. 2015 will be remembered as the year when three clean sheet airliners passed important milestones. This will not happen for many years to come, so it will be worth to look at what they brought to world of aviation.
I’m thinking of Bombardier’s (BBD) CSeries getting certification for its first variant; the Mitsubishi MRJ doing its first flight’ and COMAC’s C919 being rolled out. Going forward, we will only have derivatives progressing through such milestones for years except for the roll-out of United Aircraft’s MS-21 single aisle airliner in 2016.
The Airbus A320neo was certified in 2015 and Boeing’s 737 MAX rolled out, but these are derivatives of in-service aircraft.
Embraer’s E-Jet E2 will roll out in February but this is a further development of today’s E-jet and Airbus A350-1000 is a variant of the in-service A350-900.
It will be a long time before we see so much new in a year, so it can be instructive to look at to what extent did these new aircraft bring the state of the art of airliners forward.
Bjorn’s Corner: Russian aircraft industry.
By Bjorn Fehrm
22 August 2015, ©. Leeham Co: The Russian air show MAKS is taking place in Moscow, on the airfield of Zhukovsky, Southeast of Moscow. The town of Zhukovsky is called the Aero-City of the Russian federation. It houses not only a 17,800ft runway but also the center of the Russian aeronautical research and test knowledge around the gigantic airfield.
Just a couple of miles from the airfield lies the well-known Russian Central Aerohydrodynamic Institute, TsAGI. It has been involved in designing the aerodynamics of all Russian aircraft, including the latest, the Sukhoi Superjet and Irkut’s new MC-21 competitor to the Boeing 737 MAX and Airbus A320neo.
I have always been interested in the enigma of the Soviet and later Russian aeronautical industry. It had such a different structure to its western counterparts and has therefore struggled. The MC-21 is a good example. Ilyushin says they are working on MC-21, as does Yakolev and Irkut. Irkut says it is their aircraft, yet I had not heard of Irkut as a plane OEM before MC-21.
My household names for Russian airliners were Tupolev and Ilyushin with perhaps Yakolev for the smaller types. If we included Ukraine during the Soviet period, we could add Antonov as a known airliner OEM. But not Irkut. Yet today the main players doing new civil airliners are Sukhoi and Irkut, neither known for building airliners. How does this all fit together? Here is a try to sort it out. Read more
Bjorn’s Corner: What Paris Air Show taught us about East and West.
By Bjorn Fehrm
25 June 2015, © Leeham Co: With a few days in the office one can look back at Paris Air Show with a bit of perspective. So what are the impressions?
It was surprising how many orders Airbus and Boeing landed. Both had played down the expectations, telling that it will be a decent show but nothing close to record. Yet both were booking orders or commitments which were better than expected going into the PAS. Read more