Leeham News and Analysis
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Leeham News and Analysis
- Bjorn’s Corner: New engine development. Part 23. Development risks. September 6, 2024
- If a strike occurs, here’s what Boeing can do September 5, 2024
- China banks on C919, but numbers say it still needs Boeing September 2, 2024
- Bjorn’s Corner: New engine development. Part 22. High Turbine technologies. August 30, 2024
- The A330 for medium haul or twice the frequency with A321XLR? Part 1 August 29, 2024
Russian-Chinese wide-body: The aircraft, Part 4
By Bjorn Fehrm
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Introduction
September 15, 2016, ©. Leeham Co: In Part 3 of this series, we identified the type and size of wing we would have on a new Russian-Chinese wide-body. It’s now time to go through all the considerations around the engines for the aircraft.
Figure 1. Concept for new widebody airliner. Source: United Aircraft.
The aircraft would enter the market around 2025. We would have to decide on what size engine that would be needed, what engines would be available at the time and could this project motivate any new engine developments.
Summary:
- The Russian-Chinese wide-body as outlined would require engines in the size class of the Boeing 787-9/10.
- GE and Rolls-Royce have been mentioned as engine suppliers. The question would be: will they offer updated 787 engines or new designs and will Russia compete with its announced engine project for the aircraft?
Bjorn’s Corner: East bloc aeronautical industries
By Bjorn Fehrm
September 09, 2016, ©. Leeham Co: The Western world civil aeronautical industry developed a number of new aircraft (Boeing 787, Airbus A350, Bombardier CSeries, Mitsubishi’s MRJ) or aircraft variants (A320neo, 737 MAX, A330neo, Embraer’s E-Jet E2) during the last 15 years. The last of these projects (A330neo) is entering flight tests within six months.
Figure 1. The MC-21 project is reviving the Russian aeronautical industry. Source: UAC.
Over the next 10 years there will be few new Western hemisphere aircraft projects. But there will be action in the east, in Russia and China. We therefore will cover these projects in more and more articles.
To give a background to these articles, I will spend some Corners to describe some of the differences between the Western and Eastern aeronautical industry. A lot of these differences will come from the industry’s history. We will start with Russia’s airframe industry. Read more
Russian-Chinese wide-body; The aircraft Part 3
By Bjorn Fehrm
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Introduction
September 08, 2016, ©. Leeham Co: Having covered the possibilities of reusing parts of the Il-96 fuselage for a new Russian-Chinese wide-body, it’s now time to look at the existing IL-96 wing and how far this is from a modern design.
Figure 1. Concept for new wide-body airliner. Source: United Aircraft.
The intent is not to propose that the existing wing is reused but rather to check the technology level against western designs and how big a leap it will be for the partners to make a modern high performance wing for the aircraft.
Summary:
- The IL-96 wing is roughly on the technological level of the Airbus A340-300 wing with a bit lower aspect ratio.
- The dimensions are close to what is needed for the new wide-body but sweep and aspect ratio needs to be changed for a new wing.
- A wing for a 2025 long range wide-body also need a more modern construction technology than classical aluminum alloys.
Russian-Chinese wide-body: The aircraft, Part 2
By Bjorn Fehrm
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Introduction
September 01, 2016, ©. Leeham Co: In Part 1, we concluded that the existing Il-96 fuselage cross section would be suitable for a new Russian-Chinese wide-body. This means that a lot of experience and existing designs for fuselage sections can be re-used.
Figure 1. Concept for new wide-body airliner. Source: United Aircraft.
Most importantly, it means that mock-ups and cabin sections can be made early in the project to start work on new and better cabin equipment. This is an area where the partners really lag their western competitors.
We will now look at what aircraft capacities can be conceived with the existing Il-96-300 and -400 fuselages and what changes will be necessary to achieve the targeted sizes that Russia’s United Aircraft Corporation (UAC) and Commercial Aircraft Corporation of China (COMAC) have communicated.
Summary:
- The IL-96 fuselage can be re-used for a Russian-Chinese wide-body.
- The existing IL96-300 cabin is on the small side whereas the Il-96-400 cabin is a bit larger than needed.
- The project will likely choose an intermediate size fuselage to reach the targeted 250 to 280 passenger capacity.
Russian-Chinese wide-body: The aircraft
By Bjorn Fehrm
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Introduction
August29, 2016, ©. Leeham Co: We have now covered the capabilities of the joint venture partners for a Russian-Chinese wide-body and its possible market. Now we will look at what kind of aircraft such a cooperation can create, given technology and other constraints.
Figure 1. Concept for new wide-body airliner. Source: United Aircraft.
There have been bits and pieces leaked to media from Russia’s United Aircraft Corporation (UAC) and Commercial Aircraft Corporation of China (COMAC).
We will look at what has been said and combine that with our knowledge of existing and future technological capabilities of the parties to make predictions for what aircraft the project can produce.
Summary:
- The Russian-Chinese wide-bodywill be made to cover the “small wide-body”market.
- Initial size will be a 250-280 passenger wide-body
- The aircraft will be a twin with engines from either GE or Rolls-Royce.
- Range with 280 passengers will be 6,500nm.
Russian-Chinese wide-body: The market
By Bjorn Fehrm
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Introduction
August 25, 2016, ©. Leeham Co: Having dissected the players behind the Russian-Chinese wide-body, it’s time to look at what market such an aircraft aims to capture.
Figure 1. Concept for new wide-body airliner. Source: United Aircraft.
The project participants, Russia’s United Aircraft Corporation (UAC) and Commercial Aircraft Corporation of China (COMAC), say they intend to make a 250-280 seat aircraft with a 6,500nm range.
We will look at what market such an aircraft can address from its Entry into Service (EIS) 2025 and over the next 10 years. We will also discuss the constrains that emerges with UAC and COMAC entering the market as new players.
Summary:
- The Russian-Chinese wide-body covers a market segment called “small wide-body” in the Global market forecast made by Airbus and Boeing.
- Based on data in these forecasts, the dominant market during the first 10 years after a 2025 Entry into Service (EIS) would be a captive Chinese market.
Russian-Chinese wide-body: background and outlook
By Bjorn Fehrm
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Introduction
August 21, 2016, ©. Leeham Co: The discussions around a joint Russian and Chinese development of a 250-300 seat wide-body has been going on for years.
The project got a more concrete form at President Putin’s visit to China in June. On the 25th of June visit, an inter-governmental agreement to develop and market the aircraft was signed.
Figure 1. Concept for new wide-body airliner. Source: United Aircraft.
At the same time Russia’s United Aircraft Corporation (UAC) and Commercial Aircraft Corporation of China (COMAC) agreed to establish a joint venture for the program.
What market is this aircraft trying to address and will it become a serious player in the wide-body market? Will it give the duopoly Airbus/Boeing something to worry about?
We will address these questions in a series of articles. Before going into the questions around the wide-body program, we will look at the players, UAC and COMAC. Are they up to the job of making a competitive wide-body aircraft?
Summary:
- Russia and China enter the wide-body project with widely different knowledge bases.
- China’s first airliner project, ARJ21, just received local certification after years of delays.
- Russia has produced over 10,000 airliners and has made two generations of wide-body aircraft in the size category.
- The latest wide-body aircraft, Ilyushin IL-96, is on the level of Airbus A340-300 from a technological basis.
Irkut MC-21-200 deepened analysis
By Bjorn Fehrm
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Introduction
August11, 2016, ©. Leeham Co: In February we did the first analysis of the Irkut MC-21-200. The analysis was made on the first data available. During the Farnborough Air Show, we got more information around the MC-21 and could see that an update of our first analysis was called for.
Figure 1. MC-21-200, the smaller varaint of the MC-21. Source: Irkut
At the time we compared the MC-21-200 to Airbus A320 and concluded they are about the same size. With the new information, we could see that there is a size difference.
Summary:
- The MC-21-200 is close to Airbus A320neo in external dimensions, a bit smaller in the cabin and has lower take-off weights.
- Irkut, the OEM, suggested standard two class capacity is 132 seats. This is with space to spare in several places.
- To make a fair efficiency comparison with the A320neo, we develop an optimized cabin for the MC-21-200.
Irkut MC-21-300 analysis, Part 3
By Bjorn Fehrm
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Introduction
August04, 2016, ©. Leeham Co: With the classification of the Irkut MC-21-300 done in terms of its size segment (it’s close to the Boeing 737 MAX 9 in size) and the key data of the aircraft analyzed, it’s now time to look at aircraft efficiency and payload-range performance.
Figure 1. MC-21-300 prototype on the final assembly line. Source: Irkut
We will do this with two cabin configurations for the aircraft. The first will be the nominal two class seating as proposed by the OEMs. For the second, we use a single class layout with 30-inch seat pitch.
Summary:
- The MC-21 has problems to compete with the re-engined 737 MAX 9 in terms of efficiency when using the standard two class cabins.
- When we switch to a single class high density layout, the fuel efficiency improves. The MC-21-300 exit concept is then more similar to the MAX 9, which affects efficiency in a positive way.
Irkut MC-21; we look at the MC-21-300, Part 2.
By Bjorn Fehrm
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Introduction
August 01, 2016, ©. Leeham Co: After having found the nearest competitor to the Irkut MC-21-300 as the Boeing 737 MAX 9 in our first article, we now go deeper in the comparison of the two aircraft.
Figure 1. MC-21-300 at the roll out in June 2016. Source: Irkut
In the first article, we found that the aircraft have almost identical cabin dimensions. Now we will look at other areas like airframe dimensions, weights and data which dictate overall performance.
Summary:
- The MC-21 has cabin dimensions which are very close to the 737 MAX 9.
- The nominal two class seating by Irkut is lower than the MAX 9. We have assumed that this will increase during the lifetime of the MC-21.
- We also compare other data between the MC-21-300 and the MAX 9, such as weights, wetted areas and effective wingspans to see if these are similar as well. In the end these dictate the aircraft’s efficiency together with the engines.