Toroid propeller Has anyone tried one of these propellers on there real boat?

[Davidkrienke]

I have been aware for a year or so but my son said they have been 3d printing them I wonder how hard it would be to mold one in beryllium ?.They seem to take the tip drag way down.

 

[Wasted wages]

Wild looking prop !!

 

[Roxyflash]

Be a som ***** to sharpen and balance

 

[Scott Tonak]

Very intriguing. I've been kicking the tires on purchasing a Sharrow prop for our families 87' Four Winns 200 Horizon/350 Chevy/Cobra Drive bow rider. I've also followed the 3d printing of the drone props and they seem to perform well. Could this design benefit us r/c boat geeks? Can you 3d print in a material strong enough for our application or would you have to cast a mold for bc or ss? CNC? Roxyflash is right.

 

[Davidkrienke]

 

[Davidkrienke]