CFM LEAP-1B enters flight testing

May 7, 2015: The CFM LEAP-1B has entered flight testing on GE’s company-owned Boeing 747. The engine is for the Boeing 737 MAX. Aviation Week has a story and one section in particular caught our eye, as it relates… Read More

The higher level game

By Bjorn Fehrm Introduction May 4, 2015, c. Leeham Co. The other day one of our readers asked something along the lines, “now that Airbus has the A320neo 20% more efficient than today’s A320, how shall Boeing’s 737… Read More

Pontifications: the A380, Airbus and Boeing

May 4, 2015, c. Leeham Co. Of all the things we write about, nothing stirs responses and readership than news–of any kind–about the Airbus A380. Last week I wrote about Malaysia Airlines putting a large number of its… Read More

Fundamentals of airliner performance; Part 7, the wing.

By Bjorn Fehrm Introduction April 28, 2015, c. Leeham Co. In our articles where we present an analysis of different airliners, we use a number of terms like aspect ratio, wetted area, etc and we assume that the… Read More

Boeing 737 MAX: performance if engine has SFC shortfall

By Bjorn Fehrm Subscription required Introduction 14 April 2015, C. Leeham Co: There have been persistent reports that the CFM LEAP engines should be behind their fuel consumption targets. We commented on these rumors recently. It’s normal for… Read More

Pontifications: Wizz could be first face-off of 737 MAX 200 vs “A320neo 195”

April 13, 2015: A campaign that began last year between Airbus and Boeing for a large order of 100 airplanes at Europe’s Low Cost Carrier, Wizz Air, could be the first face off between the “A320neo 195” (our… Read More

Pontifications: Meet the “A320neo MAX 195”

April 6, 2015: There is a saying in America: keeping up with the Joneses. This means that if your neighbor buys something, you have to go buy something similar to “keep up.” In the case of commercial aviation,… Read More

Bombardier CS300 analysis vs A319neo, 737-7

By Bjorn Fehrm Subscription required Introduction March 29, 2015, c. Leeham Co: Bombardier’s big bet in the aeronautics sector, CSeries, is well into flight testing, now more than half way toward the 2,400 hours required by Transport Canada… Read More

Guarantees, commitments and marketing claims

March 25, 2015: When the early Boeing 787-8s emerged overweight and falling short of the marketing claims, Boeing said that nonetheless the fuel burn and performance guarantees to customers would be met. When we revealed the first flight… Read More

Bjorn’s Corner: Intro, LCC long range and CFM’s LEAP

March 19, 2015: This is the first version of my Corner where I will comment on the aeronautical world as I see it. It will be a mix of tech things (I am an engineer) and my view… Read More