Bjorn’s Corner: Sustainable Air Transport. Part 8P. Serial Hybrid. The deeper discussion.

Subscription required By Bjorn Fehrm. February 25, 2022, ©. Leeham News: This is a complementary article to Part 8. Serial Hybrid. It uses Leeham Company’s Aircraft Performance Model from our consultancy practice to analyze the design of a… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 7. Hybrids.

February 18, 2022, ©. Leeham News: Having covered batterie-based electric aircraft in the last three articles, we now move to the next ideas to improve our aircraft’s efficiency and burn less carbon-based fuels, hybrids. A word of caution… Read More

Reducing one’s carbon footprint through flying choices

Subscription Required By Vincent Valery Introduction   Jan. 20, 2022, © Leeham News: Discussions about reducing commercial aviation’s carbon emissions have become more prominent over the last few years. Many projects claim that electric(-hybrid) and hydrogen aircraft will be… Read More

Bjorn’s Corner: The challenges of airliner development. Part 14. The ATO.

July 30, 2021, ©. Leeham News: Last week, we went through the later tasks in the Prelaunch Phase. We talked about Concept refinement, Supplier selection, and Certification work. Now we dig deeper into the important Authorization To Offer… Read More

De-carbonisation of air transport is ON

By Bjorn Fehrm July 20, 2021, © Leeham News: Last week was a game-changing week for air transport. Three events synchronized to trigger it. EU presented 13 policies to achieve net-zero greenhouse gas emissions by 2050 with concrete… Read More

Eviation announces firm configuration for battery-powered 9-seater

By Bryan Corliss July 1, 2021, © Leeham News: Seattle-area electric aircraft builder Eviation revealed Thursday that it has reached firm design configuration for its battery-powered, nine-seater Alice aircraft. The announcement – which typically would signify that Eviation… Read More

Bjorn’s Corner: The challenges of airliner development. Part 6. Adding seats.

June 04, 2021, ©. Leeham News: Last week, we examined operating and product certification rules related to 9-seater air taxis and commuters. We took the example of the new Tecnam P2012 Traveller to study the certification rules for… Read More

Bjorn’s Corner: The challenges of hydrogen. Part 31. Wrap-up: Where we stand

April 2, 2021, ©. Leeham News: It’s time to wrap up our series on the hydrogen airliner alternative for Sustainable Commercial Aviation. We review the status for sustainable aviation as of today, then look at the future next… Read More

Bjorn’s Corner: The challenges of hydrogen. Part 27. Fuel cell APU gains

March 5, 2021, ©. Leeham News: We have discussed different auxiliary power generation principles for a hydrogen aircraft over the last weeks. We found a fuel cell auxiliary power system has many attractions, one being the possibility of… Read More

Enhancing the Dreamliner, Part 2: The 787-8 analyzed

Subscription Required By Bjorn Fehrm Introduction   October 15, 2020, © Leeham News: We look deeper at the 787-8, the smallest member of the Dreamliner family. After selling well initially, it has fallen out of favor with the airlines…. Read More