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 22. May 16, 2025
- Services are driving revenues and profits in difficult times, Part I May 15, 2025
- The BWB has a long way to go before flying passengers, freight May 12, 2025
- 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
Bjorn’s Corner: New aircraft technologies. Part 28. Alternative Preliminary design
September 1, 2023, ©. Leeham News: We described the Preliminary design phase of an airliner development program last week. One could say this was the classical way that aircraft projects conduct Preliminary design. There is a different way… Read More
Bjorn’s Corner: New aircraft technologies. Part 26. Airliner development program
August 18, 2023, ©. Leeham News: We started last week to look at how to make the development of a new airliner family more efficient. First, we describe how development projects are phased and how many people with… Read More
Bjorn’s Corner: New aircraft technologies. Part 25. Efficient development
August 11, 2023, ©. Leeham News: We have described a number of technological advances that can be used to make the next-generation airliners more efficient and, thus, more environmentally friendly. Part of developing more efficient next-generation aircraft is… Read More
The reality behind the eVTOL industry’s hyperbole, Part 5.
Subscription required By Bjorn Fehrm August 10, 2023, © Leeham News: We look at the promises that the VTOL industry has made in their Investor prospects and what the reality is as they come closer to Certification and… Read More
Bjorn’s Corner: New aircraft technologies. Part 23. Efficient flight speeds
July 28, 2023, ©. Leeham News: We touched on efficient flight speeds in Part 21, but it was focused on fuel efficiency and how new technologies require the airliner to fly at new altitude-speed combinations to maximise the… Read More
The reality behind the eVTOL industry’s hyperbole, Part 3.
Subscription required By Bjorn Fehrm July 27, 2023, © Leeham News: We look at the promises that the VTOL industry has made in their Investor prospects and what the reality is as they come closer to Certification and… Read More
Bjorn’s Corner: New aircraft technologies. Part 21. Changed flight profiles
July 14, 2023, ©. Leeham News: Developments in engines and airframe technologies require that the aircraft are flown differently to maximize the benefits. We start by locking what changes in parasitic and induced drag mean for how airliners… Read More
Bjorn’s Corner: New aircraft technologies. Part 20. Efficient flying
July 7, 2023, ©. Leeham News: We explore different technologies in the series that can make our next-generation airliners more efficient and, thus, less polluting. We have discussed developments of engine and airframe technologies, such as Turbofans versus… Read More