Bjorn’s Corner: New aircraft technologies. Part 18. Minor drags

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

Bjorn’s Corner: New aircraft technologies. Part 17. Airframe with lower induced drag

June 16, 2023, ©. Leeham News: This is a summary of the article Part 17P. Airframe with lower induced drag. The article analyzes Boeing 737 MAX 8-sized airliners with Truss Braced Wings versus wings with folding wingtips and… Read More

Bjorn’s Corner: New aircraft technologies. Part 17P. Airframe with lower induced drag

Subscription required June 16, 2023, ©. Leeham News: This is a complementary article to Part 17. Airframe with lower induced drag. It discusses in detail the simulations we have done on a Truss Braced Wing, using our Aircraft… Read More

The Small Airliner Problem, Part 8. A battery-based airliner

Subscription required By Bjorn Fehrm June 15, 2023, © Leeham News: In our series on fundamental costs factors that make up Cash Operating Cost, COC (Fuel, Maintenance, Airway/Airport fees, Crew costs), we have started analyzing if the size… Read More

Bjorn’s Corner: New aircraft technologies. Part 16. Airframe with lower induced drag

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

Bjorn’s Corner: New aircraft technologies. Part 16P. Airframe with lower induced drag

Subscription required By Bjorn Fehrm June 9, 2023, ©. Leeham News: This is a complementary article to Part 16. Airframe with lower induced drag. It discusses in detail the Truss Braced Wing type of airframe that increases the… Read More

Bjorn’s Corner: New aircraft technologies. Part 15. Airframe for lower Induced drag

June 1, 2023, ©. Leeham News: Last week, we examined ways to lower the dominant drag of an airliner, the air friction drag (Figure 1). Now we look at the second largest drag component, the Induced drag, and… Read More

Bjorn’s Corner: New aircraft technologies. Part 14. Airframe for lower friction drag

May 26, 2023, ©. Leeham News: This is a summary of the article Part 14P. Airframe for lower friction drag. The article discusses in detail a Blended Wing Body (BWB) type airframe and how it reduces the wetted… Read More

Bjorn’s Corner: New aircraft technologies. Part 14P. Airframe for lower friction drag

Subscription required By Bjorn Fehrm May 26, 2023, ©. Leeham News: This is a complementary article to Part 14. Airframe for lower friction drag. It discusses in detail the Blended Wing Body (BWB) type of airframe that shall… Read More

The Small Airliner Problem, Part 6

Subscription required By Bjorn Fehrm May 25, 2023, © Leeham News: In our series about the viability of the business plans for small airliners (nine to 50 seats), we have covered the cost factors that make up the… Read More