Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
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- Movie Review: Devotion November 21, 2022
- China will accelerate development of its commercial aerospace sector November 21, 2022
- Bjorn’s Corner: Sustainable Air Transport. Part 46. eVTOL comparison with helicopter November 18, 2022
- The economics of a 787-9 and A330-900 at eight or nine abreast November 16, 2022
State investment in Bombardier further mockery of WTO
Nov. 24, 2015, (c) Leeham Co. With the $1bn investment by the Province of Quebec in the Bombardier 
CSeries program, another example of government funding emerges in commercial aviation development.
Setting aside whether the investment might be challenged before the World Trade Organization—and whether this makes good business sense for Quebec—the move makes a mockery of the entire concept of avoiding government support.
Bjorn’s Corner: Aircraft systems, the real nuts to crack
By Bjorn Fehrm
06 November 2015, ©. Leeham Co: COMAC’s C919 was rolled out in the week. We got to see a new shiny aircraft which looked ready to fly. The nicely curved fuselage and wings were immaculate, the paint was shiny and the CFM LEAP-1C engines were ready to go.
Yet many ask, when will it fly for the first time? It used to be that when the airframe was finished and the engines ran reliably it was time to fly. No longer! Today the most challenging part of an aircraft program is the integration of all the complex systems which hide under the skin. This is what kept the Bombardier CSeries on ground longer than it should and the Boeing 787 and Airbus A380 had the same flu (the latter also had to short wires).
It is the part of the aircraft which takes longest to get to work reliably. The A380 is known for its long period of nuisance warnings from the complex avionics system after entry into service and the reliability work for the 787 has to a large extent been one of software tuning of its system side.
As the system function of modern aircraft has grown more complex the whole architecture of how it was built had to be changed. Here’s how.
No fear of C919 for a generation
Nov. 4, 2015, © Leeham Co. The first COMAC C919 was rolled out of the factory over the weekend, China’s mainline entry into the fiercely competitive arena now “owned” by the Airbus-Boeing duopoly.
COMAC C919. Click on image to enlarge. Photo via Google images.
Although the two giants each has said China is the next competitor they will have to face, the Big Two have nothing to worry about for a generation to come.
Here’s why.
Assessing the China market
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Introduction
Sept. 30, 2015, (c) Leeham Co.: The Boeing deals announced last week with China put the country into the spotlight about its commercial aviation ambitions.
For many, the various deals announced by Boeing raise alarm bells. For most, that fire horse already left the fire station. The smoke has been billowing out of China (or maybe that’s smog) for a long, long time.
Summary
- Boeing announces 300 orders and commitments for China, though the company was vague about the details. We try to dissect what’s real and what’s smoke.
- Additional deals announced by Boeing are driven by China’s pay-to-play approach to business.
- Other OEMs, suppliers also have to pay-to-play.
- China’s deals with Airbus and Boeing are only two elements of a national goal for commercial aerospace.
- IP theft and technology transfer big concerns.
Chinese 737 Completion Center makes tactical, strategic sense
Sept. 22, 2015, © Leeham Co. The expected announcement by Boeing and Chinese President Xi during
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President Xi of China. Photo via Google images.
his state visit to Seattle this week that Boeing will develop a Completion Center for the 737 in China is a significant event that may one day lead to an assembly line there.
Boeing’s touch labor union, the IAM 751, was predictably critical. In a post on the 751 website last week, the union said, “In a previous meeting with Renton’s 737 leadership we saw a brief presentation outlining Boeing’s perceived market conditions regarding sales of single aisle aircraft and the company’s desire to collaborate with China. We have asked the Company for details of what is intended with “collaboration” and have not received ANY information on “collaboration” or confirming or disputing the media reports. While we don’t know specifics of any such proposal, ANY shift of aerospace jobs from our bargaining unit or Washington State causes grave concern.”
Mitsubishi opens Seattle Engineering Center ahead of MRJ90 first flight
The MRJ90 testing and entry into service timeline. Source: Mitsubishi. Click on image to enlarge.
August 3, 2015, © Leeham Co.: Mitsubishi Aircraft Corp. today opened its Seattle Engineering Center jointly with local company AeroTEC in advance of the first flight of the MRJ90 in September or October. During the second quarter of next year, four of five MRJ Flight Test Vehicles will be domiciled in Moses Lake in Central Washington for the bulk of the flight testing over the following year. Entry into service is planned for 2Q2017 with launch customer All Nippon Airways.
The engineering center represents the first in Washington State for an aircraft OEM other than Boeing. Mitsubishi will assign 50 engineers from Japan to the new SEC, in South Seattle a short distance from Boeing Field. One hundred engineers will be hired locally.
AeroTEC and Mitsubishi began discussing working together only last January, said president Lee Human, who added that the seven months from January to the opening of the SEC today was remarkable for the speed in which negotiations, contracts, permits and hiring was achieved.
LEAP, the best of 1,000 investigated alternatives.
By Bjorn Fehrm
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Introduction
June 23, 2015, © Leeham Co. CFM International went through 1,000 iterations before settling on the final design for the LEAP engines that will power the Airbus A320neo, the Boeing 737 MAX and the COMAC C919.
In an interview with us at the Paris Air Show, CFM LEAP program manager Gareth Richards explained the macro process of the development of LEAP, CFM’s sequel to CFM56. This will be the largest turbofan engine program in the history of civil aviation and the follow on to the world’s most-sold turbofan, the CFM56.
Richards focused on how an engine like LEAP gets designed and what the trades are that a single aisle, short haul engine has compared to long haul engines.
LEAP is sharing the A320neo platform with Pratt & Whitney’s GTF but is sole engine on the 737 MAX and the C919. This will lead to engine production rates five years into the program of 1800 engines which is higher than the present rate of CFM56 deliveries.
Dependant on rate increases by Airbus and Boeing, this can increase beyond 2,000 engines per year after the initial ramp. It would make LEAP the largest civil turbofan program whichever way one counts: engines, installed thrust or revenue.
Summary:
- Research of optimal engine cycle was extensive, with more than 1,000 alternatives investigated before settling on the final LEAP cycle.
- The production ramp is the fastest ever, from 30 engines 2015 to 1,700 by 2019.
- While CFM does not want to ramp faster than planned, final production rate is flexible.
- The large volume of sold engines, the fast production ramp and the short-haul cycle makes for a conservative approach to performance.
- We discuss with Richards how such a program is managed and how you make sure you can deliver on promises.
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