Bjorn’s Corner: New engine development. Part 4. Propulsive efficiency

April 19, 2024, ©. Leeham News: We have started an article series about engine development. The aim is to understand why engine development now dominates new airliner development when it comes to the needed calendar time for development… Read More

Bjorn’ s Corner: New engine development. Part 2. Thrust generation

April 5, 2024, ©. Leeham News: We started an article series about engine development last week. The aim is to understand why engine development nowadays dominates the needed time and the risks involved in new aircraft development. To… Read More

Bjorn’s Corner: New aircraft technologies. Part 38. Flight tests

November 17, 2023, ©. Leeham News: We are discussing the different design phases of an airliner development program. After covering Conceptual, Preliminary, and Detailed design and the manufacturing of prototypes and their roles, we now look deeper at… Read More

Further developments of Airbus’ A321

Subscription required By Bjorn Fehrm September 28, 2023, © Leeham News: We recently looked at the latest developments around Airbus’ A321XLR certification. When the certification is completed, it extends the A321 to a true Trans-Atlantic airliner. After the… Read More

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

What’s the Green aviation news at Paris 2023?

Subscription required By Bjorn Fehrm June 22, 2023, © Leeham News: Every announcement from aircraft deals, OEM updates, or supply chain news now has the words Sustainable/Sustainability injected in every second sentence. It doesn’t matter what the subject… Read More

Paris Day Two: Air India finalizes earlier deals; Embraer, ATR announce orders

By Bryan Corliss June 20, 2023, © Leeham News – While Monday’s news from the Paris Air Show was dominated by the one big Airbus order from Indian carrier IndiGo, Tuesday saw a host of smaller deals announced… Read More

Bjorn’s Corner: New aircraft technologies. Part 12. Airframe efficiency improvement

May 12, 2023, ©. Leeham News: This is a summary of the article New aircraft technologies. Part 12P. Airframe efficiency improvement. The article discusses the different drag types that affect an airframe, their magnitudes, and the physics behind… Read More

Bjorn’s Corner: New aircraft technologies. Part 12P. Airframe efficiency improvement

Subscription required By Bjorn Fehrm May 12, 2023, ©. Leeham News: This is a complementary article to Part 12. Airframe efficiency improvement. It discusses in detail the next-generation airframe improvements we can expect. We start with detailing the… Read More

Bjorn’s Corner: New aircraft technologies. Part 9P. Engine core advances

Subscription required By Bjorn Fehrm April 21, 2023, ©. Leeham News: This is a complementary article to Part 9. Engine core advances. It discusses in detail the next-generation propulsion system cores and what efficiency improvements to expect from… Read More