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July 7, 2021, © Leeham News: China’s government policy of operating commercial aircraft that generally are no more than 12-15 years old means the carriers face a replacement bubble that the home market can’t possibly meet.
According to data reviewed by LNA, there are just 303 COMAC C919s on order. Delivery is supposed to begin this year with one airplane. Currently, the peak year for deliveries is 2027 with 55 aircraft scheduled.
There are about 1,116 Boeing 737 NGs built between 2008-2018 operated and stored by Chinese carriers. China has just 296 737 MAXes on order—a deficit of 820 aircraft needed for replacement of these aging airplanes. (Boeing’s website shows just 104 outstanding orders, but Chinese-owned lessors aren’t included in this tally.)
Scott Hamilton and Pontifications are taking the day off.
July 5, 2021, © Leeham News: Development of small supersonic transports (SSTs) seemed, for a time, a fad. Three companies announced plans to develop an SST business jet with two of them expanding the concepts to be small passenger airliners, each with less than 100 seats.
Today, only one company appears remaining. Aerion collapsed recently for lack of funding. Boom remains, announcing a “commercial agreement” with United Airlines early this month for 15 Overture SSTs and options for 35 more. The agreement, however, is highly conditional.
LNA discussed the agreement in a previous 10 Minutes About podcast. Today’s 10 Minutes About is a technical discussion about designing an SST.
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By Judson Rollins
July 5, 2021, © Leeham News: The passenger air travel recovery from COVID-19 has been wildly uneven, even between neighboring countries. Most countries with large domestic markets have seen dramatic rebounds in passenger volumes, although yields have been held back by a continued slump in long-haul and business travel.

Aircraft parked at Hong Kong International Airport, with construction on a third runway in the background. Source: Bloomberg.
In the Asia-Pacific region, however, even short-haul international traffic has been disrupted by virus outbreaks, a painfully slow vaccine rollout, and a largely stagnant web of border closures.
July 2, 2021, ©. Leeham News: It’s time to start our aircraft project, where we discuss aircraft development from preliminary planning to fleet support and look at how the certification rules influence our work.
The first part of any aircraft project should focus on understanding the market your project will enter. Our project idea is to develop a Green aircraft for the 19 seat passenger market.
By Bryan Corliss
July 1, 2021, © Leeham News: Seattle-area electric aircraft builder Eviation revealed Thursday that it has reached firm design configuration for its battery-powered, nine-seater Alice aircraft.
The announcement – which typically would signify that Eviation designers have locked-in design features, so that suppliers can use their drawings to begin work on their components – is more of a formality, however.
Eviation Executive Chairman Roei Ganzarski said suppliers already have delivered shipsets for the first production Alice, and mechanics at the company’s Arlington, WA, plant have begun final assembly.
“The plane is being built as we speak,” Ganzarski said. The company is on track for a first flight before year’s end, he added.
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By Bjorn Fehrm
July 1, 2021, © Leeham News: In our Friday Corners, we analyze the development challenges of aircraft. We will launch a concrete project Friday where we intend to develop a 19 seat airliner. To make it interesting, it will be a Green aircraft. We focus on the Certification issues in the Corner series.
To complement it, we here look at the operating cost of a battery-based electric airliner, as there are costs that are often not presented to the public in the marketing of these alternatives. The operational costs for the huge batteries are too often forgotten.
Figure 1. Heart Aerospace ES-19 battery based airliner. Source: Heart Aerospace.
June 30, 2021 © Leeham News: Yesterday’s 10 Minutes About discussed Boeing’s drive toward a dramatic new way to design and produce new airplanes. Today’s 10 Minutes About looks at how Airbus is approaching the same challenge.
By the Leeham News Team
June 29, 2021, © Leeham News: United Airlines today announced its order for 200 Boeing 737 MAXes and 70 Airbus A321neos.
The size and split of the order were first reported by Airfinance Journal.
The deal is the carrier’s largest, as well as the industry’s largest “in a decade.”* The order is for 50 737 MAX 8s, 150 737 MAX 10s and 70 A321neos. “United will replace older, smaller mainline jets and at least 200 single-class regional jets with larger aircraft,” the airline said.