The toroidal boat propeller pair installed. (Credit: rctestflight) As boring as propeller designs may seem to the average person, occasionally there’s a bit of a dust-up in the media about a ...

Illustration from MIT’s 2017 patent, showing a regular propeller in 5a and a toroidal propeller in 5b. US Patent US10836466B2 No magic propeller ...

The toroidal propeller, one of the Lab's @RD100Awards winners, has a unique, closed-form propeller design that makes it a significantly quieter alternative to common multirotor propellers on ...