By Bjorn Fehrm
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March 26, 2018, © Leeham News: Boeing’s NMA or 797 is taking final form ahead of a decision to essentially launch the program with an Authority to Offer (ATO), widely believed to be later this year.
In the first article, we looked at the key characteristics of the design. We also looked at the engine situation in a couple of articles.
Now we round up the series with analyzing the potential economics of the aircraft.

Figure 1. The first sketch of the smaller 797-6X with 224 seats. Source: JonOstrower.com
Summary:

Boeing 787. Photo via Google images.
March 23, 2018, © Leeham News: In a new, albeit not unexpected, blow to Airbus, Boeing won a hotly contest competition at American Airlines between the A330neo and the 787, two sources say.
Bloomberg News reported Airbus lost the deal, earlier today.
LNC confirmed the decision with two sources. But Derek Kerr, EVP and CFO of American, told LNC no decision has been made, but an announcement could be coming by the first quarter earnings call if not before.
The competition originated with American’s long-publicized ambivalence over the legacy Airbus A350-900 order placed by US Airways long before the latter acquired American, a 787 customer of long-standing. With this deal, American will cancel the A350 order for 22 airplanes.
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March 22, 2018, © Leeham Co.: As Boeing enters the final stretch whether to launch the New Midrange Aircraft (NMA, aka 797) market focus should shift to the
engines more than the airframe and even the market demand.
It all comes down to this: no engines, no plane.
Monday’s post outlined some of the issues to consider.
But there are larger implications as well.
By Bjorn Fehrm
March 20, 2018, ©. Leeham News, Toulouse: Airbus launched the 251t version of the A330neo in Toulouse today. The new weight variant increases the range of the A330-800 and A330-900, making the A330-800 the longest range airliner in the 250- to 300-seat segment.
Airbus also presented an update on the progress of the A330neo program, now in the middle of flight tests.
March 16, 2018, ©. Leeham News: In the last Corner, we looked at the drag of an airliner during cruise. We could see the thrust required to counter the drag in the thin air of 37,000 feet was low, about 4,000lbf per engine.
Now we continue with the drag created by the aircraft during descent and landing.
March 14, 2018 © Leeham News: Boeing is unlikely to face retaliatory tariffs from China following President Trump’s imposition of tariffs on China’s steel industry.
LNC believes China’s own self-interest for its airline, leasing and aerospace industry would make imposing tariffs on Boeing counter-productive.
Several media reports this week raise the prospect of China retaliating against Boeing, including these at CNBC and The New York Times. Boeing stock is off $10 or 3% in mid-day trading.
By Bjorn Fehrm
March 14, 2018, ©. Leeham Co: India’s Directorate General of Civil Aviation (DGCA) grounded Airbus A320neos equipped with Pratt & Whitney GTF engines with faulty compressor seals Monday.
Affected are eight A320neos of Indigo airlines and three A320neos of GoAir. The Indian groundings are unusual as they go beyond the directives of EASA and FAA for the problem.
March 14, 2018, © Leeham Co.: Airbus and Boeing have engine issues on in-service airplanes, but customers point to very different responses to getting their
grounded airplanes back in the air.
Airbus’ problems with A320neos powered by Pratt & Whitney Geared Turbo Fan engines have been making headlines almost since introduction in late 2016.
Less well publicized, but nevertheless by now well-known within the industry, has been Boeing’s 787 powered by Rolls-Royce Trent 1000 engines.