January 19, 2018, ©. Leeham Co: In the last Corner, we described how the boundary layer theory lead to the understanding of Friction drag for aircraft. The mechanisms behind Induced drag was understood about the same time.
Once again Prandtl was involved, but it was an English person who first postulated the physical root of induced drag, Fredrick Lanchester.
Jan. 18, 2018, © Leeham Co.: Boeing quietly raised its list prices by 4.1% for its commercial airplanes, the same day Airbus did (Monday)—but without the fanfare of an announcement, as did Airbus.
The 737-700, which has been out of favor with customers for years, now lists for $85.8m. The MAX 7, which has yet to find traction in the market, lists for $96m.
By Bjorn Fehrm
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January 18, 2018, © Leeham Co.: In the first article about the Chinese/Russian widebody, the CR929, we described the route to a joint program company and the launch of the project.
We now analyze the aircraft, based on available information. With the information, it’s possible to model the aircraft in our performance model and get the first understanding of performance and efficiency.
By Bjorn Fehrm
January 15, 2018, ©. Leeham Co: Airbus announced record 2017 airliner deliveries of 718 aircraft today. It was the 15th consecutive year of increased production, this time with 30 aircraft over 2016. Fabrice Bregier, the Chief Operating Officer of Airbus, predicted Airbus would pass Boeing in deliveries by 2020.
The company also booked its third best year in orders, with 1,109 aircraft giving a Book-to-Bill of 1.5. The backlog is at a record 7,256 aircraft (Figure 1).
By Bjorn Fehrm
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January 15, 2018, © Leeham Co.: The Chinese and Russian Widebody program started in earnest over the last year. After signing a joint venture agreement in 2016, the project now has a joint management company, CRAIC, formed 22nd of May 2017, and standing for China-Russia Commercial Aircraft International Corporation.
The company will have final assembly and management located in Shanghai. The aircraft has also got its final name, CR929-600. It will hold 280 passengers in a three-class cabin with a range of 6,500nm, Figure 1.
Figure 1. The CRAIC CR929-600, the main aircraft in the Chinese-Russian widebody program. Source: CRAIC.
John Leahy has been with Airbus 33 years, holding his current position as COO-Customers for more than 20 of these. He retires this month. Jan. 15’s 2017 year-end Orders and Deliveries press conference will be his last. LNC interviewed Leahy about his tenure at Airbus. Parts 1, 2 and 3 appear here, here and here. Today is Part 4. LNC’s Scott Hamilton has known Leahy for nearly 30 of these 33 years.
Jan. 12, 2018, © Leeham Co.: “I want to unwind, get healthy, eat right and not be in a constant state of jet lag. At 44, 45, I didn’t mind it. Right now, the thought of
The end of an era. Airbus President Fabrice Bregier (L) and COO Customers John Leahy. Bregier leaves Airbus next month after more than two decades. Leahy retires this month after more than three decades. Photo via Google images.
doing trips to Australia, I’d be jet lagged for three days.”
These are John Leahy’s plans for the first year after he retires in a matter of days after 33 years at Airbus.
When he was younger—that age 45 he referenced above—he thought nothing of working in Toulouse, Airbus headquarters, on Monday, getting on a plane to fly to Southeast Asia and Australia and be back in Toulouse to put in a full day on Friday—working the clock to make the long, long round trip.
“It was sort of fun,” he recalls. “I did a lot.” But not now.
January 12, 2018, ©. Leeham Co: In the last Corner, we described how the theory for the boundary layer was proposed by Ludwig Prandtl, and how this led to an understanding of the source of Friction drag for an aircraft.
We will now continue with describing how the role of Friction drag was researched and how aircraft designers learned how to reduce it.