
Bjorn Fehrm (right) discusses the industry’s challenges with Nico Buchholz (left). Credit: Charlotte Bailey, Leeham News.
By Charlotte Bailey
Dec. 2, 2025, © Leeham News: As aerospace companies, investors, and industry analysts gather in Amsterdam for the second iteration of the annual Future Aero Festival, the attributes and advantages offered by clean-sheet aircraft concepts are in the spotlight. Bjorn Fehrm, analyst and consultant at Leeham Co, believes that an initial early propulsion evolution to come to market will be the so-called “micro-hybrid” innovation.
The ’next big aircraft program’: a simultaneously inevitable yet somehow elusive concept OEMs and airlines alike are already considering with a view to future operations. Certainly, the scale of the challenge facing aircraft developers is significant.
From alternative propulsion strategies to entirely clean-sheet designs, industry insiders agree that tomorrow’s airliners are likely to be substantially different from currently operational concepts. But how are these ideas starting to shape up, and what is currently understood about commercial aviation’s future direction?
An aircraft is a “production tool for an airline: it exists to satisfy a certain need,” clarified Nico Buchholz, president and deputy CEO of BermudAir. Although Buchholz has personally participated in the launches, demo flights, and entry into service of more than ten aircraft types, “on the other side, we see the slowness” of development, he added.
Fehrm of Leeham Co believes that a combination of motor, generator, and battery “makes a lot of sense on turbofans and turbofan engines,” he said, citing complexities with gas turbine acceleration and deceleration. “You actually have to design the engine a little less efficiently because of that. So, if you have the electrical motor in there to help, you can actually make a more efficient engine.” Read more