Leeham News and Analysis
There's more to real news than a news release.
Electric Flight and the Ugly Duckling
By Bjorn Fehrm June 25, 2025, © Leeham News at Paris Air Show: The low or no emission propulsion discussion started at the 2014 Farnborough Air Show when Airbus’ E-Fan prototype flew in front of a surprised crowd…. Read More
Outlook 2024: Milestone year for alternative energy development
Subscription Required By Scott Hamilton and Bjorn Fehrm Jan. 18, 2024, © Leeham News: Twenty twenty four is 10 years after the Sustainable Aircraft discussions started when Airbus flew its battery-powered E-Fan before the world’s OEMs and press… Read More
The reality behind the eVTOL industry’s hyperbole, Part 7.
Subscription required By Bjorn Fehrm August 24, 2023, © Leeham News: We have looked at the promises the VTOL industry made in their Investor prospects and what the reality is as the VTOLs come closer to Certification and… Read More
The reality behind the eVTOL industry’s hyperbole, Part 2.
Subscription required By Bjorn Fehrm July 20, 2023, © Leeham News: We look at the promises that VTOL OEMs made in their Investor prospects and the scale-down in capabilities as Certification comes closer. We also analyze whether the… Read More
The reality behind the eVTOL industry’s hyperbole
Subscription required By Bjorn Fehrm July 13, 2023, © Leeham News: We have done a deep dive series on the cost problems experienced by small airliners and how these make life difficult for alternative propulsion projects. The eVTOL… Read More
Bjorn’s Corner: Sustainable Air Transport. Part 51. eVTOL wrap.
December 23, 2022, ©. Leeham News: After 25 articles about the eVTOL, it’s time for a wrap. We have looked at most aspects of this new form of air transportation, including how sustainable it is. Today we summarize… Read More
Bjorn’s Corner: Sustainable Air Transport. Part 50. eVTOL production volumes.
December 16, 2022, ©. Leeham News: Last week, we looked at the production costs of our typical eVTOL. We could see that it was far higher than Joby’s assumption of $1.3m for the S4, about three times higher… Read More
Bjorn’s Corner: Sustainable Air Transport. Part 49. eVTOL production costs.
December 9, 2022, ©. Leeham News: This is a summary of the article Part 49P, eVTOL production costs. It discusses the production costs of our typical eVTOL (Figure 1) and its drain on the OEM’s finances. New aircraft… Read More
Bjorn’s Corner: Sustainable Air Transport. Part 49P. eVTOL production costs. The deeper discussion.
Subscription required By Bjorn Fehrm December 9, 2022, ©. Leeham News: This is a complementary article to Part 49, eVTOL production costs. It discusses the typical production costs of a certified eVTOL when produced in large quantities. eVTOLs… Read More