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 ‘new’ design that ... commercial toroidal boat props exist too.

With Sharrow Marine’s patented looped blade design, the X10™ sets new standards in propulsion by eliminating traditional limitations on propeller ... International Boat Show Innovation Award.

Despite being integral to aviation for more than a century, propellers have changed remarkably little since the Wright Brothers. A team at MIT’s Lincoln Lab has developed a new propeller shape ...