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Jan. 4, 2017, © Leeham Co.: The top 25 Airbus customers that are identified account for 63% for the current backlog, an analysis of the company’s order list shows.
For Boeing, its Top 25 customers account for 69% of its identified backlog.
Both companies have hundreds of Unidentified orders for which no customer is disclosed.
Jan. 3, 2017, © Leeham Co.: Airbus, Boeing and Bombardier look toward 2017 as a bit of a punk year, as detailed in our Look Ahead for subscribers only. Not so by Embraer.
In an exclusive interview, John Slattery, the president of Embraer Commercial, said EMB will gain “momentum” this year. This is at a time where sales at the other three of the Big Four OEMs are expected to slow off an already slow 2016.
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Introduction
Dec. 22, 2016, © Leeham Co.: When it comes to comparing backlogs of Airbus and Boeing, the latter likes to point to what it calls a better quality of customers.
The fact is, both companies have large orders with airlines that may be characterized as less than top quality, or which appear to have over-ordered.
Summary
Dec. 20, 2016: Boeing yesterday announced a new round of job cuts, hoping that these will come from retirements voluntary buyouts–but it did not rule out involuntary layoffs.
No number was given by Boeing for the workforce reduction.
Just a week ago, LNC predicted more job cuts would be coming at Boeing–and at Airbus.
Boeing’s message to employees is below.
Dec. 19, 2016, © Leeham Co. Two thousand sixteen is almost over. This will be my last Pontifications of the year.
We approach our job with a little different perspective than the daily newspapers and aviation trades. They have greater resources than we do and have a greater ability to report the news. So LNC tries to bring news with perspective that those outlets don’t.
We provide analysis of events and of aircraft economics and performance. Not even the trades do the latter. We also make our own forecasts of trends and production rates. Sometimes it takes a few years to be proved right or wrong. So far, we have a good track record of being right.
We’re also not afraid to take on controversy—and be controversial. And we don’t hesitate to call bullshit when we see it.
This gets often us into hot water with the subjects of the controversy.
This is what sets LNC apart.
By Bjorn Fehrm
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Introduction
December 19, 2016, ©. Leeham Co: It’s time to round off our article series around the engine for a Supersonic Transport Aircraft (SST). The series was triggered by Boom Technologies’ plans to launch a business class-only SST with Virgin Atlantic signing up to buy the aircraft if Boom succeeds.
Our initial articles described the problems involved in making a Mach 2 SST. We singled out the engine with nacelle as the most difficult challenge.
Subsequent articles focused how to select an engine for such an aircraft. The requirements are pretty unique and forces design choices which are contrary to a normal airliner engine.
Today, the words “low bypass ratio” and “low overall pressure ratio” are nonexistent in engine OEMs’ brochures. Yet this is what we need for our SST. Having covered the cruise phase in Part 4, we now close with take-off/landing and what else to think of when propelling an SST.
Summary:
Dec. 16, 2016: The US filed a notice of appeal today of the WTO ruling that Washington State tax breaks granted to entice Boeing to locate a wing plant for the 777X and assemble the airplane at Everett ((WA) was a prohibited subsidy.
The move was expected.
At issue were $8.7bn in tax breaks.
December 16, 2016, ©. Leeham Co: After the turbine comes the engine’s exhaust system. This is where the thrust characteristics of the engine are formed. It is also the environment that defines the back pressure for the fan and turbines. It’s therefore more high-tech than one thinks.
For the very high bypass airliner engines of tomorrow, the common fixed bypass exhaust of today (Station 18 in Figure 1) will not be acceptable. Variable exhaust areas will have to be introduced.

Figure 1. GasTurb principal representation of a three shaft turbofan like our reference Rolls-Royce Trent XWB. Source: GasTurb.
On engines that function in high supersonic speed, it gets really complex. Not only is the exhaust area variable, it must have a dual variation exhaust, a so-called Con-Di nozzle.
Market, other factors emerging, creating Boeing 787 concern
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Introduction
Jan. 4, 2017, © Leeham Co.: Despite a rosy picture painted by Boeing about the future of the 787 and the ability to recover more than $29bn in deferred production
Boeing photo.
and tooling costs, there are signs that cause concerns over the next 3-5 years.
Summary
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Posted on January 4, 2017 by Scott Hamilton
Airbus, Airlines, Boeing, Etihad Airways, ExIm Bank, Leasing, Leeham News and Comment, Lessors, Premium
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