Pie Aeronefs is a small firm in Switzerland, specializing in battery-powered aviation, and close to flying its single-seat air racer, the UR-1 Devil. We reported on this machine in 2021 at an early stage in its development, and now it’s going to be available as a kitplane. Adding to a bumper crop, their UG-2 Bullfinch will also be available as a kit. Pronouncing that their aircraft are all zero-emissions machines, Swiss made, and innovative, Pie Aeronefs has this manifesto on its home page: “Pie Aeronefs is a Swiss all-electric aircraft manufacturer. “Through distributed electric propulsion, our zero carbon emitting airplanes shall surpass the performance of conventionally powered competitors. “Thanks to an innovative design, our aircraft are optimized for the electric energy system.” UR-1 Devil Supplied as a kit that the company says can be completed in 800 hours, the racer features carbon, aluminum, wood and electronics components, and “access to all technical data and assembly diagrams.” Customers have to supply …