Engine Development. Part 3. The early turbofans.

Subscription Required By Bjorn Fehrm Introduction September 1, 2022, © Leeham News: Last week, we looked at the motivation to change from propeller engines to jet engines as higher cruising speeds were sought for airliners. We learned the… Read More

Boeing prepares to swap engines from MAX inventory to new production

Subscription Required By Scott Hamilton Aug. 15, 2022, © Leeham News: Boeing CEO David Calhoun says the company won’t build 737 gliders. That’s what airplanes are called as they exit final assembly without engines. The mitigation ironically comes… Read More

Pontifications: Lessons of the Titans: Book review

Dec. 14, 2020, © Leeham News: If you want a good business book to read over the Christmas holidays, get Lessons from the Titans by three analysts at the independent Melius Research Co. The subtitle, a mouthful, aptly… Read More

Stabilizing 737 production is Boeing’s priority, CFO says

By Dan Catchpole June 5, 2019, © Leeham News: Boeing is focused on smoothing out 737 production at 42 aircraft a month for now. Any decision to returning production to 52/month is well down the road, Boeing CFO… Read More

Bjorn’s Corner: Aircraft engine maintenance, Part 3

  March 17, 2017, ©. Leeham Co: In the last Corner,  we showed graphs of the yearly flight hours for engines on single-aisle aircraft. Now we will deduce the market for engine overhauls from these graphs. These will show which engines generate… Read More

Russian-Chinese wide-body: Aircraft performance

By Bjorn Fehrm Subscription required. Introduction September 19, 2016, ©. Leeham Co: In Part 4 of the article series, we put together an assumed complete Chinese-Russian wide-body aircraft with fuselage, wing, engines, etc. It is now time to understand… Read More

Used B777-200ER or A340-300?

Subscription required By Bjorn Fehrm Introduction Nov. 26 2015, ©. Leeham Co: In recent articles we have latched on to the debate around the prices for used Boeing 777-200 aircraft. Contrary to the market appraising companies’ ideas about second… Read More

Pontifications: Mitsubishi nears first flight for MRJ-90

Aug. 3, 2015, © Leeham Co. Mitsubishi is just a few months away from beginning flight testing on the first commercial airplane designed and built in Japan since the NAMC YS-11 in the 1960s. The 60 passenger turbo prop had… Read More

Bjorn’s Corner: What Paris Air Show taught us about East and West.

  25 June 2015, © Leeham Co: With a few days in the office one can look back at Paris Air Show with a bit of perspective. So what are the impressions? It was surprising how many orders… Read More

Embraer and Bombardier: the tale of different companies, histories and fortunes

Last month we did a situational analysis of Boeing and Airbus and we promised to do the same for Embraer and Bombardier. Our follow-up article took longer than planned, as we wanted to include the rather significant changes… Read More