Day: December 31, 2024

A Quieter Propeller: Chasing the Unicorn

This may be old news, but let’s look at the toroidal propeller patent from 2020. It is a valiant attempt to make drones more palatable for the general public. The idea came from the “ring wing” design, an airplane with a wing in the shape of a ring. Tests in WW2 were promising, because this design spreads out the vortices normally concentrated at the tips of regular wings. The inventor of this design (interview here: […]