ANALYSIS OF FLIGHT PERFORMANCE AND STABILITY OF FAMILY OF TRANSPORT AIRPLANE DESIGNS WITH FUSELAGE COMMONALITIES
Do modern airliners like the Boeing 787 and Boeing 777X still use circular cross sections because it is less expensive to build? - Quora
![aircraft design - Could some one explain me with the mathematical relations on how the double bubble fuselage cross section (example A380) is designed. - Aviation Stack Exchange aircraft design - Could some one explain me with the mathematical relations on how the double bubble fuselage cross section (example A380) is designed. - Aviation Stack Exchange](https://i.stack.imgur.com/t6jxm.jpg)
aircraft design - Could some one explain me with the mathematical relations on how the double bubble fuselage cross section (example A380) is designed. - Aviation Stack Exchange
![Redefining the 757 replacement: Requirement for the 225/5000 Sector, Part 6. - Leeham News and Analysis Redefining the 757 replacement: Requirement for the 225/5000 Sector, Part 6. - Leeham News and Analysis](https://leehamnews.com/wp-content/uploads/2015/03/MOM-NSA-NLT-A322-cross-section2.png)
Redefining the 757 replacement: Requirement for the 225/5000 Sector, Part 6. - Leeham News and Analysis
![Conceptual design and comparative study of strut-braced wing and twin-fuselage aircraft configurations with ultra-high aspect ratio wings - ScienceDirect Conceptual design and comparative study of strut-braced wing and twin-fuselage aircraft configurations with ultra-high aspect ratio wings - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S1270963822000694-gr018.gif)
Conceptual design and comparative study of strut-braced wing and twin-fuselage aircraft configurations with ultra-high aspect ratio wings - ScienceDirect
![Part 3: Boeing 757 replacement: 757 and Airbus A321neoLR versus clean sheet designs. - Leeham News and Analysis Part 3: Boeing 757 replacement: 757 and Airbus A321neoLR versus clean sheet designs. - Leeham News and Analysis](https://leehamnews.com/wp-content/uploads/2014/10/NSA-and-NLT-cross-sections.png)