September 29, 2023, ©. Leeham News: We are discussing the Detailed design phase of an airliner development program. We have talked about program management methods, development techniques, and tools for Detailed design. But there is one area that… Read More
September 8, 2023, ©. Leeham News: We described the Preliminary design phase of an airliner development program over the last weeks. Now our project is transitioning into Detailed design. It’s the most challenging part of the project as… Read More
June 23, 2023, ©. Leeham News: In our series about technologies that influence the efficiency of a new generation of airliners, we have covered the dominant drag of an airliner, air friction drag, and the second largest drag,… Read More
June 9, 2023, ©. Leeham News: This is a summary of article Part 16P. Airframe with lower induced drag. It discusses the Truss Braced Wing type of airframe that increases the practical wing span of an aircraft and… Read More
March 24, 2023, ©. Leeham News: This is a summary of the article New aircraft technologies. Part 5P. Optimal fuselage. The article discusses different cross-sections and how these drive drag and weight. The cross-section chosen depends on the… Read More
Subscription required By Bjorn Fehrm March 10, 2023, ©. Leeham News: This is a complementary article to New aircraft technologies. Part 3. Airframe improvements. It discusses in detail the areas of an airliner airframe where tangible improvement can… Read More
Subscription required. Now open to all Readers. Introduction Boeing is looking at a number of scenarios for its New Airplane Study (NAS) that would replace the 757 and 737, have ranges from 4,000nm-5,000nm, and carry as few passengers… Read More
Subscription required. Introduction Boeing is on the defensive in the single-aisle market. The Airbus A320neo family has about a 57% market share against the Boeing d 737 MAX. As recently as Wednesday’s third quarter earnings call, Boeing CEO… Read More