Friday, January 24, 2020

Re: [electricboats] Epropulsion Navy 3.0 Propeller Dimensions

SW - I will post the results, but probably not until Spring when the water warms up...

Myles - Thanks for the info.  The combination of the human-powered examples along with the information on JavaProp convinced me to buy a RC plane pusher propeller as the first retrofit.  The human-powered examples concerned me a little bit given that the RPM is typically much lower (~360 RPM), and the airfoil shape on the blades could cause cavitation.  I suspect that the trolling motor RPM will still be below the cavitation speed given how much the pitch decays on the outer diameter of the blades.

Matthew - Unfortunately, you are probably correct.  A much lesser problem, I also suspect that the direction of the threads on the motor shaft are optimized for the forward direction.
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