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

Bjorn’s Corner: New aircraft technologies. Part 24. Single or dual aisle fuselage?

August 4, 2023, ©. Leeham News: This is a summary article to Part 24P. Single or dual aisle fuselage. It summarizes the drag and weight simulations we have done on fuselages for the next generation Heart of the… 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

Bjorn’s Corner: New aircraft technologies. Part 22. Engine characteristics.

July 21, 2023, ©. Leeham News: Developments in engines and airframe technologies require that future airliners are flown differently to maximize the technology benefit. After looking at the consequences of new developments for the airframe, we now analyze… 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