Family aviation limps into the turbine era (Carbon Cub with TurboTech engine)
One year ago… The revolution in oil-powered general aviation is at least three years away
There has never been any significant progress in aviation without first an improvement in engines. A low-power high-efficiency turbine engine, for example, would enable the creation of all kinds of dramatically superior aircraft. But none of the kit companies or even the certified four-seat aircraft companies can readily afford to invest what is required.
Enter Turbotech, a startup in the Islamic Republic of France. They say that they have a 140 hp turboprop engine that burns fuel at approximately the same rate as a 140 hp Rotax (piston) engine
How long before this can be dropped into a certified airframe? The founders said that if everything goes perfect and nothing at all has to be changed in their current design, the engine could be EASA/FAA-certified in three years.
I hope to proved wrong about the 2028 date (three years from 2025), but it seems that the engine is more or less available in a more-or-less-certified airplane, the Carbon Cub:
It’s $690,000 as a “builder-assist” kit airplane (the owner doesn’t do anything challenging!):
A factory-built version (“light sport”) is “coming soon”. Note that this plane will be delivered with the awesome new Garmin AXIS panel.
It looks as though this is about $350,000 more expensive than the piston (Rotax) version, adjusted for comparable avionics.
There’s an $1,800 Starlink option, but that is perhaps best skipped given that SpaceX/Starlink have recently discovered how to charge Rockwell Collins- and Honeywell-style prices for subscriptions that work at aircraft speeds.
The sound and the fury:
July 23, 2026 update: the plane has already slipped a year. The web site still says 2027:
The sales guys at Oshkosh say “2028”. They brought one to the event, though:
Full post, including comments





















