Leeham News and Analysis
There's more to real news than a news release.
Leeham News and Analysis
- Bjorn’s Corner: Air Transport’s route to 2050. Part 21. May 9, 2025
- Does an A220-500 need a new wing and engines? Part 2. May 8, 2025
- Embraer downplays tariff impact on 2025 results May 6, 2025
- JetZero readies effort for private equity fund raising May 5, 2025
- Bjorn’s Corner: Air Transport’s route to 2050. Part 20. May 2, 2025
Farnborough: CFM, PW engage in hand-to-hand combat
We’re all used to Airbus and Boeing engaging in hand-to-hand combat. The war has now spilled over to CFM and Pratt & Whitney and the LEAP engine vs the GTF. There have always been some sharp words. But… Read More
787 fuel burn, GEnx and how it relates to LEAP-1B
787 fuel burn: Aviation Week has this story about the early fuel burn results for the Boeing 787 beating expectations (which admittedly were tamped down because of the program difficulties). Some of this has been reported before. What… Read More
Odds and Ends: MAX EIS dates; McNerney on business climate; A320 Tianjin plant only breaks even
MAX EIS dates: Aviation Week has this story that lists the planned MAX EIS dates: 737-8, 2017 (we previously reported 4Q2017); 737-9 in 2018 and 737-7 in 2019. AvWeek also reported the bypass ratio for the LEAP-1B is… Read More
Comparing Neo, Ceo, NG and MAX
As Airbus and Boeing battle for orders for the current generation A320 and 737 families and for the re-engined models, comparisons between the four sets of aircraft has been difficult to come by. Furthermore, with Boeing continuing to… Read More
More on the changes to the CFM LEAP-1B
As we reported earlier today, Boeing and CFM didn’t stop with the previously announced 68.4 inch fan for the LEAP-1B engine on the 737 MAX. Buckingham Research, citing Boeing at the investors’ day, wrote that Boeing talked about… Read More
70″ Fan for the 737 MAX
We picked up information that Boeing’s announcement at ISTAT in March that it had settled on a 68.4 inch fan for the 737 MAX LEAP-1B wasn’t a done deal. Now Buckingham Research comes out of Tuesday’s Boeing’s investors’… Read More
Odds and Ends: Boeing revises MAX winglet, adding 1.5% to efficiency
Update, 2:15 PM PDT: Airbus issued this response to the Boeing development: “This kind of split-tip device was among the options we studied for the A320 Family, and we decided instead to advance with our Sharklet design as… Read More