By Bjorn Fehrm
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Introduction
June 08, 2017, ©. Leeham Co: We started the comparison of Irkut’s MC-21 and COMAC’s C919 last week. We compared project time plans, structures and aerodynamics.
Now we continue with the comparison of cabin capacities and systems.
Summary:
June 1, 2017, © Leeham Co.: Pratt & Whitney, like the airlines, lessors, suppliers and competitors, awaits a decision by Boeing whether it will launch the New Midrange Aircraft for the Middle of the Market sector.
PW’s president, Bob Leduc, said the company is going through its business case studies

Bob Leduc, president of Pratt & Whitney. UTC photo.
even as it provides information to Boeing.
In an interview yesterday with Leduc and PW Commercial Engines president Chris Calio at PW’s pre-Paris Air Show media days near its West Palm Beach (FL) engine production facility, Leduc says the market size and the assumption Boeing will choose two engine makers to power the NMA are among factors that will drive the business case.
Here is a transcript of the interview on the NMA and other topics. The lead into the NMA evolved from a question about the aftermarket services PW—and Boeing—have as strategic profit-center goals.
By Bjorn Fehrm
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Note: With the first flight of the Irkut MC-21 in the weekend, we move the Qantas Ultra Long Haul article Part 2 to a later date.
June 01, 2017, ©. Leeham Co: Irkut’s MC-21 and COMAC’s C919 both completed their first flights during last month. Both are new competitors in the market’s hottest segment, that for 150 to 240 seats.
They both challenge the present rulers: Airbus’ A320 and Boeing’s 737 MAX. We made first analysis of the aircraft against their Western competition here, here and here.
We now dig deeper with a direct comparison between the MC-21 and C919 projects.
Summary:

Artisit concept of the Boeing 797. Rendering via Google images.
May 10, 2017, © Leeham Co.: Airbus can kill the business case for the prospective Boeing 797, the New Midrange Aircraft also known as the Middle of the Market Airplane,
All it has to do is move first, instead of waiting for Boeing to launch the 797, something considered likely next year.
If Airbus launched what is commonly called the A322, a larger, longer-range version of the A321neo, the new version would become a true replacement for the Boeing 757, meet economics of the smaller 797, which has a working title of the 797-6, at a much lower capital cost.