Did you already studied similar existing vessels?
* efficiency (~80%) = 3 hp shaft power.
These are my notes for the basic boat design course. The program has closed, but this material could be helpful. But yes, read everything you can.
Thanks, these are exactly the dimensions I need. This is a right hand prop though. Don't know yet if the motor runs as well to both direction.
Sure, it is possible to find diameter (12") and pitch (8") quite near, but the blade area is about 5-8 times more than needed and efficiency gone...
One problem with the Torqeedo output power 5.6 kW is and that is propulsion efficiency. It will change a lot depending on boat speed, propeller...
Sounds plausible.
I don't know. It seems that all electric or trolling motor sales material copy each others material. If they lie, I can lie. It's the same with...
Yes, as long as it means propeller shaft power...
PAR, thank you for sharing your experience in the issue. I think, this should be in the interest of manufacturers of trolling motors. Every...
ondarvr, how can you increase pitch in the blade-hub joint? The problem is just here, the trolling motor propellers are designed for 4 mph...
Gonzo, small outboard propellers are designed for double rpm. The diameter is also too small to be efficient.
PAR, you are probably right, but with the "normal" propellers you can buy by dimensions.
I have been wondering lately why is it so difficult to find a trolling motor propeller for another purpose than trolling. All propellers seem to...
Jep, the efficiency scale and curve are too dark. And the power scales should be identical. The efficiency numbers in Parameter column are very...
I was reading these posts and this came out. It's a test curve of a new "direct drive" trolling motor. Some experts here say that it is full of...
You can find a 20 kW electric motor and controller here: http://www.goldenmotor.com/ check "BLDC Motor" from left side.
Electric boat Hello my solution was to use old SELVA 6hp outboard, took the 2-Stroke engine out and fit in an electric RC motor TP-100-200,...
When, not if.
When it comes to the original question, if the 3D/CAD design is mine, no lofting is needed. Ask the builder....
