Flutr Motors is working on the Flutr VTOL but believes all-electric is not the best way to go.
It says it is releasing 3 versions: the Flutr DTEH (Diesel Turbine Electric Hybrid); the Flutr HEH (Hydrogen Electric Hybrid); and the Flutr FE (Full Electric)
The Flutr DTEH will be available first. The other two models "are under development," it says.
Founder Cameron Spencer said in March 2020 that the company hasn't released engineering-level information publicly. At that time only "basic operating information" had been released.
With respect to the development timeline, he said FLUTR started in 2016 and now has a flying prototype, which is being "iterated toward the goal of stable transition flight, certification, pre-production, sales, and deployment."
He added on funding that details are not released publicly.