The new chief executive officer of United Technologies Corp., Gregory Hayes, threw cold water on hopes and dreams of Pratt & Whitney, a subsidiary, that the successful small- and medium-sized Geared Turbo Fan will grow into the wide-body… Read More
Posted on December 12, 2014 by Scott Hamilton
Boeing, Bombardier, CFM, Comac, CSeries, Embraer, Irkut, Mitsubishi, Pratt & Whitney, Rolls-Royce
737 MAX, 757, 757 replacement, 767, 767 replacement, A320NEO, Alain M. Bellemare, Bombardier, C919, CFM, Comac, CSeries, E-Jet E2, Embraer, GE Aviation, Gregory Hayes, GTF, Irkut, MC-21, Mitsubishi, MRJ, Pratt & Whitney, United Technologies
Subscription Required By Scott Hamilton and Bjorn Fehrm Introduction Figure 1. Nominal range of 737 MAX 8 from Oslo Source: Great circle mapper, Boeing. Click on Image to enlarge Dec, 8, 2014:The Boeing 737-8 MAX is the successor… Read More
By Bjorn Fehrm Dec. 2, 2015: The time has now come to cover descent and landing in our articles around airliner performance. As many aspects of descent are similar to climb we will repeat a bit what we learned… Read More
Posted on December 2, 2014 by Bjorn Fehrm
By Bjorn Fehrm Nov. 25, 2014: In our article series around the performance of a modern airliner we have now come to the climb after takeoff. We started with cruise as this was simplest because the aircraft is… Read More
Posted on November 25, 2014 by Bjorn Fehrm
Subscription required. Now open to all Readers. By Bjorn Fehrm and Scott Hamilton Introduction Nov. 24, 2014: Bombardier CSeries flight testing has now passed 500 flight hours, and with the addition of Flight Test Vehicle 5 to the… Read More
Posted on November 24, 2014 by Scott Hamilton
It’s one of the bitterest rivalries in the industrialized world: Airbus vs Boeing. Despite being world-class companies, executives at each often snipe at each other’s airplanes, claiming superiority in economics and passenger appeal. Like lawyers arguing a court… Read More
Subscription required Introduction Boeing’s ability—or inability—to bridge the production gap for the 777 Classic to the 777X entry-into-service in 2020 was a top concern of a series of Wall Street types during a recent series of meetings we… Read More
Posted on November 16, 2014 by Scott Hamilton
By Bjorn Fehrm In our first article on how to understand the fundamentals that make up airliner performance we defined the main forces acting on an aircraft flying in steady state cruise. We used the ubiquitous Boeing 737 in… Read More
Posted on November 13, 2014 by Bjorn Fehrm
The Zhuhai Air Show, underway this week, comes against the backdrop of rising concerns–and large orders announced in recent weeks–of an over-ordered Asian market. We’ve expressed concern about the large number of orders at Lion Air and AirAsia… Read More
Posted on November 11, 2014 by Scott Hamilton
Fundamentals of airliner performance, Part 3
By Bjorn Fehrm In our first article about how to understand the performance of a modern airliner we defined the main forces that are acting on an aircraft flying in steady state cruise. In our clinic we use the… Read More
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Posted on November 19, 2014 by Bjorn Fehrm
Boeing, CFM, Leeham News and Comment, Uncategorized
737 MAX, Boeing, CFM, CFM Leap-1B