Milligan secured a patent for a propeller, consisting of two vanes like those of a smoke jack placed beyond the rudder, and working with a universal joint. In 1825 Jacob Perkins, of Massachusetts ...

Established in 1921 by Josef Becker, who is credited with inventing the rudder propeller (known as the "Becker Propeller"), SCHOTTEL has grown into one of the leading global players in maritime ...

The rudder in that altered glider and in the 1903 ... The Wright brothers designed and made their own propellers, aided by the use of their own wind tunnel (which they also designed and built ...