August 9, 2019, ©. Leeham News: In our series about classical flight controls (“fly by steel wire”) and Fly-By-Wire (FBW or “fly by electrical wire”), we this week turn to the actual Flight control system after covering the infrastructure needs last week. We could see the FBW required a higher redundancy Hydraulic and Electrical infrastructure. Why we will come to.
Now we look at the control principles for classical control systems like the Boeing 737 system and FBW system like the Airbus A320 system.
Posted on August 9, 2019 by Bjorn Fehrm
By Bjorn Fehrm
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August 8, 2019, ©. Leeham News: Airbus announced a hike of the Gross Weight of the A220 by 5,000lb at the Paris Air Show in June. It will be available for aircraft delivered from 2H2020.
“It was at the request of Customers, they wanted more range” said Rob Dewar, Head of Engineering & Customer Support for the A220, when we talked after the announcement. Will these customers use the capability to cross the Atlantic, driving the long-range fragmentation to ever-smaller cabins? Does it make economic sense compared to an A321LR or a 737 MAX 8? We check with our performance model.
Summary:
Posted on August 8, 2019 by Bjorn Fehrm
Aug. 7, 2019, © Leeham News: It will take Boeing nearly a year to deliver the stored 737 MAXes if the airplane returns to service in November, according to a new analysis by Bernstein Research.

Boeing 737 MAX jets grounded. Seattle Times photo.
In an Aug. 5 research note, Bernstein reported the results of an investors’ survey and forecast the ramp-up of production next year to rate 57/mo, something Boeing had hoped to achieve last June before the MAX grounding upset all plans.
In the survey, Bernstein reported it expects the MAX return to service in November.
Posted on August 7, 2019 by Scott Hamilton
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Aug. 5, 2019, © Leeham News: Design issues with the giant General Electric Aviation GE9X are causing untimely headaches for the Boeing 777X program, at a time when the 737 MAX is consuming the company.
The MAX grounding and longer-than-expected fixes and Return to Service (RTS) is overshadowing challenges with the 787 skyline, where a production rate of 14/mo is burning through the backlog faster than new orders are coming in.
The 777X is facing skyline challenges as well. Sales have been slow. One major customer in the Middle East is undergoing a financial and fleet restructuring and another publicly said it will reduce 777X orders if it places a new order for 787-10s.
The 777X delivery schedule has slid to the right due to the engine issues and the 777-8 is a niche airplane that may have a greater future as a freighter than it does as a passenger model.
Posted on August 5, 2019 by Scott Hamilton
Aug. 5, 2019, © Leeham News: Airbus last week won a big, validating commitment from Air France-KLM Group for 60 orders and more options for the A220-300.
The contract won’t be firm until later this year, but the AF Memorandum of Understanding (when converted) brings the A220 order book to 611. There are some other commitments that haven’t yet been converted to orders.
Through mid-July, there were 86 A220s in service. There were 465 Letters of Intent, MOUs and Options before the Air France deal was announced.
But of those firm orders, 110 of them aren’t so firm. In fact, some of them really shouldn’t even be on the books.
Posted on August 5, 2019 by Scott Hamilton
July 25, 2019, ©. Leeham News: In our series about classical flight controls (“fly by steel wire”) and Fly-By-Wire (FBW or “fly by electrical wire”) this week we cover the difference in system infrastructure the two controls methods call for.
We will use the Boeing 737 as the classical control example and the Airbus A320 as the FBW example.
Posted on August 2, 2019 by Bjorn Fehrm
By Bjorn Fehrm
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August 1, 2019, © Leeham News: We wrap up our study of what part of an NMA market the Airbus A321XLR could capture with looking at the difference in available engine technology between the A231XLR and the NMA generation of airliners.
Summary:
Posted on August 1, 2019 by Bjorn Fehrm
By Bjorn Fehrm
July 31, 2019, ©. Leeham News: Airbus announced its 1H2019 results today, presenting a solid first half with progress in A320neo and A350 deliveries. The A220, brought over from Bombardier, is also making progress.
Yesterday, Airbus could announce an MOU with Air France for 60 A220-300. When converted to order it brings the orders for the type above 600. The A220 is gradually becoming a good deal for Airbus, and the type an important part of its lineup.
Posted on July 31, 2019 by Bjorn Fehrm
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July 29, 2019, © Leeham News: The 737 MAX crisis overshadows everything else right now at Boeing.
This includes forward orders, weak customers and production gaps on the 787 line, which right now is the cash flow cow at Boeing Commercial Airplanes.

Boeing’s production line for the 787 is filled through 2021, but after that, there are big gaps. Source: Leeham Co. Click on image for a crisp view.
Executives only briefly, and obliquely, touched on the 787 during the 2Q2019 earnings call last Wednesday.
This prompted LNA to examine the details of the backlog and production rates. The 787 is current being produced at a rate of 14/mo.
There are clear signs of challenges, both near- and medium-term for the 787.
Posted on July 29, 2019 by Scott Hamilton
July 29, 2019, Leeham News: Despite threats and fears of cancellations for the Boeing 737 MAX following two fatal accidents of virtually brand new -8 MAXes, few order cancellations directly attributable to the crashes have occurred.
So far, there isn’t a discernible shift to Airbus, either, data shows.
Posted on July 29, 2019 by Scott Hamilton